Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

DEN - IAD

$99 Find cheap flights from Denver to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Dulles Intl departing on 7/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 6/27
Thu 7/4

Search hundreds of travel sites at once for deals on flights to Washington Dulles Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Washington, D.C., as well as popular online travel agencies
In the last 7 days travelers have searched 42,816,550 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Denver to Dulles Intl (DEN-IAD)

 
These are the cheapest deals for flights from Denver to Dulles Intl currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Denver to Dulles Intl

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Denver to Dulles Intl.

Recent one-way flight deals from Denver to Dulles Intl

Only flying one-way? Below are some of the best one-way flight deals from Denver to Dulles Intl found on KAYAK recently.

Recent last minute flight deals from Denver to Dulles Intl

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Denver to Dulles Intl.

Recent direct flight deals from Denver to Dulles Intl

The latest deals for direct flights from Denver to Dulles Intl so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Denver to Dulles Intl

Find recent round-trip train or bus tickets from Denver to Dulles Intl.

All round-trip flight deals to Dulles Intl

The cheapest plane tickets to Dulles Intl found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:40 am - 9:13 amDEN-IAD
6h 33m1 stop
11:35 am - 6:09 pmIAD-DEN
8h 34m1 stop
$216Delta
Find Deal
Tue, Jun 25 - Tue, Jul 9
11:59 pm - 5:23 amDEN-IAD
3h 24mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$217United Airlines
Find Deal
Tue, Jul 23 - Mon, Jul 29
5:25 pm - 10:26 amDEN-IAD
15h 01m1 stop
11:50 am - 5:35 pmIAD-DEN
7h 45m1 stop
$231Sun Country Air
Find Deal
Tue, Jun 25 - Tue, Jul 2
5:45 am - 2:05 pmDEN-IAD
6h 20m1 stop
11:35 am - 6:09 pmIAD-DEN
8h 34m1 stop
$236Delta
Find Deal
Thu, Jul 4 - Tue, Jul 9
11:59 pm - 5:25 amDEN-IAD
3h 26mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$237United Airlines
Find Deal
Thu, Jul 11 - Mon, Jul 15
7:50 pm - 9:37 pmDEN-IAD
23h 47m1 stop
11:33 am - 11:28 amIAD-DEN
25h 55m1 stop
$240Sun Country Air
Find Deal
Fri, Jul 12 - Mon, Jul 15
6:45 pm - 10:57 amDEN-IAD
14h 12m1 stop
1:05 pm - 4:56 pmIAD-DEN
5h 51m1 stop
$245Sun Country Air
Find Deal
Mon, Jul 8 - Sat, Jul 13
6:00 am - 11:26 amDEN-IAD
3h 26mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$247United Airlines
Find Deal
Tue, Aug 6 - Wed, Aug 7
11:59 pm - 8:44 amDEN-IAD
6h 45m1 stop
5:47 pm - 10:45 pmIAD-DEN
6h 58m1 stop
$265American Airlines
Find Deal
Fri, Aug 9 - Tue, Aug 13
2:48 pm - 11:09 pmDEN-IAD
6h 21m1 stop
4:49 pm - 9:47 pmIAD-DEN
6h 58m1 stop
$267American Airlines
Find Deal
Fri, Sep 13 - Mon, Sep 16
11:59 pm - 5:25 amDEN-IAD
3h 26mnonstop
$99United Airlines
Find Deal
Sat, Jul 27
12:40 am - 9:13 amDEN-IAD
6h 33m1 stop
$108Delta
Find Deal
Tue, Jun 25
11:59 pm - 5:25 amDEN-IAD
3h 26mnonstop
$109United Airlines
Find Deal
Tue, Jun 18
4:30 pm - 10:26 amDEN-IAD
15h 56m1 stop
$111Sun Country Air
Find Deal
Tue, Jun 18
5:55 pm - 11:08 amDEN-IAD
15h 13m1 stop
$113Sun Country Air
Find Deal
Mon, Jun 3
5:37 pm - 11:20 amDEN-IAD
15h 43m1 stop
$114Sun Country Air
Find Deal
Wed, Jun 26
12:40 am - 9:13 amDEN-IAD
6h 33m1 stop
$118Delta
Find Deal
Mon, Jun 24
11:59 pm - 8:38 amDEN-IAD
6h 39m1 stop
$133American Airlines
Find Deal
Mon, Oct 28
11:59 pm - 8:54 amDEN-IAD
6h 55m1 stop
$163American Airlines
Find Deal
Thu, Jul 25
7:58 am - 6:04 pmDEN-IAD
32h 06m2 stops
$205Allegiant Air
Find Deal
Thu, Jul 25
6:10 pm - 4:31 pmDEN-IAD
20h 21m1 stop
12:05 pm - 9:34 amIAD-DEN
23h 29m1 stop
$285Sun Country Air
Find Deal
Sun, Jun 2 - Tue, Jun 4
6:10 pm - 4:31 pmDEN-IAD
20h 21m1 stop
11:20 am - 3:48 pmIAD-DEN
6h 28m1 stop
$300Sun Country Air
Find Deal
Sun, Jun 2 - Wed, Jun 5
12:30 am - 9:07 amDEN-IAD
6h 37m1 stop
5:03 pm - 10:47 pmIAD-DEN
7h 44m1 stop
$326Delta
Find Deal
Sun, Jun 2 - Tue, Jun 11
12:30 am - 9:07 amDEN-IAD
6h 37m1 stop
6:00 am - 12:30 pmIAD-DEN
8h 30m1 stop
$347Delta
Find Deal
Sat, Jun 1 - Sun, Aug 18
11:59 pm - 5:25 amDEN-IAD
3h 26mnonstop
8:24 am - 12:25 pmIAD-DEN
6h 01m1 stop
$367United Airlines
Find Deal
Sun, Jun 2 - Tue, Jun 4
11:59 pm - 5:25 amDEN-IAD
3h 26mnonstop
6:10 am - 11:01 amIAD-DEN
6h 51m1 stop
$377United Airlines
Find Deal
Sun, Jun 2 - Fri, Jun 7
11:59 pm - 4:10 pmDEN-IAD
14h 11m3 stops
12:05 pm - 4:01 pmIAD-DEN
5h 56m1 stop
Sun, Jun 2 - Tue, Jun 4
11:59 pm - 4:10 pmDEN-IAD
14h 11m3 stops
11:20 am - 3:48 pmIAD-DEN
6h 28m1 stop
Sun, Jun 2 - Wed, Jun 5
4:06 pm - 12:01 amDEN-IAD
5h 55m1 stop
5:00 am - 9:01 amIAD-DEN
6h 01m1 stop
$533American Airlines
Find Deal
Thu, May 30 - Thu, Jun 6
11:59 pm - 8:54 amDEN-IAD
6h 55m1 stop
6:00 am - 11:58 amIAD-DEN
7h 58m1 stop
$535American Airlines
Find Deal
Sat, Jun 1 - Sat, Jun 8
11:59 pm - 5:23 amDEN-IAD
3h 24mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$217United Airlines
Find Deal
Tue, Jul 23 - Mon, Jul 29
11:59 pm - 5:25 amDEN-IAD
3h 26mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$237United Airlines
Find Deal
Thu, Jul 11 - Mon, Jul 15
6:00 am - 11:26 amDEN-IAD
3h 26mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$247United Airlines
Find Deal
Tue, Aug 6 - Wed, Aug 7
5:38 pm - 11:04 pmDEN-IAD
3h 26mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$249United Airlines
Find Deal
Thu, Jun 20 - Mon, Jun 24
11:59 pm - 5:25 amDEN-IAD
3h 26mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$257United Airlines
Find Deal
Wed, Jul 17 - Wed, Jul 24
11:59 pm - 5:25 amDEN-IAD
3h 26mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$267United Airlines
Find Deal
Wed, Jun 26 - Tue, Jul 9
11:59 pm - 5:25 amDEN-IAD
3h 26mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$273United Airlines
Find Deal
Thu, Jun 20 - Tue, Jun 25
11:59 pm - 5:25 amDEN-IAD
3h 26mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$277United Airlines
Find Deal
Tue, Jul 16 - Sun, Jul 21
11:59 pm - 5:25 amDEN-IAD
3h 26mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$297United Airlines
Find Deal
Thu, Jul 18 - Sun, Jul 21
11:59 pm - 5:25 amDEN-IAD
3h 26mnonstop
10:08 pm - 11:59 pmIAD-DEN
3h 51mnonstop
$298United Airlines
Find Deal
Sun, Jun 30 - Mon, Jul 1

Flights from Denver to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Denver to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Denver to Washington Dulles Airport?

The average price of all flights from Denver to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
For Denver to Washington Dulles Airport, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Washington Dulles Airport back to Denver, the best deals are generally found on Tuesday, with Sunday being the most expensive.

What is the cheapest month to fly from Denver to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Denver to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Denver to Washington, D.C. Dulles Intl Airport is August, where tickets cost $268 on average. On the other hand, the most expensive months are March and June, where the average cost of tickets is $433 and $408 respectively.

How far in advance should I book a flight from Denver to Washington, D.C. Dulles Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Denver to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Denver to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 59 days before departure.

Which airlines provide the cheapest flights from Denver to Washington Dulles Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Denver to Washington Dulles Airport found on KAYAK was with United Airlines for $99. Delta proposed a round-trip connection from $216 and United Airlines from $217.

Which airlines fly non-stop between Denver and Washington, D.C. Dulles Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Denver to Washington, D.C. Dulles Intl Airport.
There are 2 airlines that fly nonstop from Denver to Washington, D.C. Dulles Intl Airport. They are Southwest and United Airlines. The cheapest airline for this route is United Airlines, with the best one-way deal found costing $198. On average, the best prices for this route can be found at United Airlines.

How many flights are there between Denver and Washington, D.C. Dulles Intl Airport per day?

Each day, there are between 9 and 10 nonstop flights that take off from Denver and land in Washington, D.C. Dulles Intl Airport, with an average flight time of 3h 21m. The most common departure time is 5:00 pm and most flights take off in the afternoon. Each week, there are 68 flights. The most frequent day of departure is Friday, when 15% of all weekly flights depart. The fewest flights depart on a Sunday.

Which cabin class options are there for flights between Denver and Washington, D.C. Dulles Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Denver to Washington Dulles Airport take?

A direct flight to Washington Dulles Airport will take on average 3h 22m to travel the 1,448 miles flying distance from Denver.

What’s the earliest departure time from Denver to Washington Dulles Airport?

Early birds can take the earliest flight from Denver at 6:00 am and will be landing in Washington, D.C. Dulles Intl Airport at 11:26 am.

What’s the latest departure time from Denver to Washington Dulles Airport?

If you prefer to fly at night, the latest flight from Denver to Washington, D.C. Dulles Intl Airport jets off at 11:59 pm and lands at 5:25 am.

Good to know

Low season

January

High season

May

Cheapest flight

$99
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Denver to Washington Dulles Airport

When to book flights from Denver to Dulles Intl

Are your dates flexible? Find out the best times to travel from Denver to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Denver to Washington Dulles Airport flights

  • Is the arrival airport accessible to passengers with disabilities?

    All passengers with limited mobility can comfortably access Denver International Airport (DEN). They have made certain that everyone has an excellent travel experience. DEN, in collaboration with the Hidden Disabilities Sunflower organization, provide people with disabilities with a colored lanyard with sunflowers to show that they may require special assistance in their travel. In addition, elevators and ramps are installed in the airport's parking lots to improve accessibility.

  • Where can I stay near Washington Dulles International Airport?

    You can stay at the Hilton Washington Dulles Airport, which offers excellent services and amenities such as a pool and a fitness center. The hotel is strategically located near the airport and provides complimentary airport shuttle services. Other options include Hyatt Regency Dulles, Hyatt Place Herndon, and Courtyard by Marriott Dulles Airport Herndon.

  • How can I fly from Denver to Washington Dulles International Airport?

    Several airlines offer direct flights from Denver. However, you can catch a connecting flight on this route which are considerably cheaper. These flights have one or two layover commonly occurring at George Bush Intercontinental Airport and O’Hare International Airport.

  • Are there pet relief areas in the Denver airport?

    The airport has designated animal relief areas throughout the airport to ensure that your pet has a pleasant journey. They also provide cleaning supplies in the relief areas. You must keep your pet on a leash or in a travel kennel. Pets are welcome at all three airports in Washington, D.C. You can inquire with your airline about their rules and guidelines for traveling with animals, as they may differ between airlines.

  • What is the cheapest flight from Denver to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Denver to Washington, D.C. Dulles Intl Airport was $99 for a one-way ticket and $216 for a round-trip.

  • Do I need a passport to fly between Denver and Washington Dulles Airport?

    No

  • Which airports will I be using when flying from Denver to Washington Dulles Airport?

    When flying out of Denver you will be using Denver Intl. You will be landing at Washington Dulles Airport, also known as Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Washington Dulles Airport?

    JetBlue, Delta, Air France, Lufthansa, and United Airlines offer inflight Wi-Fi service on the Denver to Washington Dulles Airport flight route.

  • Which aircraft models fly most regularly from Denver to Washington Dulles Airport?

    The Boeing 737-900 is the aircraft model that flies most regularly on the Denver to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Denver to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Denver and Washington Dulles Airport.

  • On which days can I fly direct from Denver to Washington Dulles Airport?

    There are nonstop flights from Denver to Washington Dulles Airport on a daily basis.

  • Which is the best airline for flights from Denver to Washington, D.C., Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Denver to Washington, D.C. are Delta and United Airlines. With an average price for the route of $267 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $356 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Denver to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Denver with another airline. Booking your flights between Denver and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Denver to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $199 or less one-way and $338 or less round-trip.
  • Flights from Denver to Washington Dulles Airport typically depart from Denver International Airport (DEN), which makes it easy to travel with children. The airport is parent-friendly and is dedicated to ensuring families with young kids have a smooth and easy travel experience. They have designated play areas for kids to play and run around before their flight. Your children can occupy themselves using the Automatic Guideway Terminal System.
  • Several airlines operate lounges at Washington Dulles International Airport (IAD). The lounges offer a tranquil environment in which to relax and unwind after your flight and as you wait for your transportation from the airport. While in the lounges, connect to the Wi-Fi and take advantage of the other services. You can inquire directly with your airline about membership rules and operating hours.
  • When it comes to getting to Denver International Airport, you have several options. From the city, a cab or taxi can get you to the airport in minutes. You can also take the bus or rideshare such as Uber. Taking a taxi is more convenient and cost-effective.
  • Washington Dulles International Airport strives to make travel easier and less intimidating for nursing mothers. Eight nursing rooms are exclusively designated for nursing mothers, four of which are located post-security. These areas provide lactating mothers with the privacy to breastfeed and change their babies.
  • To ensure a smooth travel experience with Denver International Airport, we recommend arriving at least 2h before your flight's departure time. This will give you enough time to check in and go through security. Last-minute rushes can cause inconveniences that you can avoid by arriving early.
See more tips

Prefer to fly non-stop from Denver to Washington Dulles Airport?

Find which airlines fly direct from Denver Intl to Dulles Intl, which days they fly and book direct flights.

Nonstop departures

Denver Intl to Washington, D.C. Dulles Intl

Monday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Tuesday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Wednesday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Thursday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Friday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Saturday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Sunday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

See more direct flights

Nonstop returns

Washington, D.C. Dulles Intl to Denver Intl

Monday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Tuesday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Wednesday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Thursday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Friday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Saturday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

Sunday

Avianca, Brussels Airlines, Copa Airlines, +4 more

Avianca, Brussels Airlines, +5 more

See more direct flights
See more direct flights

Top 4 airlines serving from Denver to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Denver to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10502 reviews
8.0Entertainment
8.6Crew
7.4Food
8.2Boarding
7.9Comfort
Airline reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

10.0 ExcellentMichael, May 2024SJC - ATL
Read more about Delta reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

They were an hour late and they didn’t have my wheelchair for me

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

Lost luggage again. Our second trip to Mykonos, and 2nd time no luggage.

Flight was well orchestrated, made up time despite circling a bit all good on United. Travelers can just be so into themselves that common courtesy has gone out window for some, but that’s not on United.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

The flight was great until towards the end when the flight attendant read an excessively long commercial for purchasing an american airlines credit card. The worst part is that we are doing a lot of traveling this year so i was actually interested in getting the credit card, but I was so annoyed with the long commercial that I completely dismissed the flight attendant bringing around the information. Next time, keep the sales pitch to 10 seconds and then pass around the brochures!!

Nice aircraft. Plane was PACKED full and distance between seats was tight. Had it been more than a two hour flight it would not have been tolerable. I had much more knee space on the JetBlue flight I went out on.

New ridiculous policy by american destroyed my allegiance to american. As a million miler with american, I expected it would be easy to get on an earlier flight when I got to airport earlier than expected, and save a five hour layover. WRONG. The online app would not let me switch flights, So I called, and was promised a call back in 90 minutes. HAH! The customer service desk at DCA said “we no longer have access to changing a flight on our screens. If the app couldn’t do it, I should send a letter to American, but there’s nothing else possible!”

I am tired of being nickel and dimed for seat location, checked luggage and carry on bags. That is why i rarely fly anymore.

It was right on time and crew were very courteous

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Literally the worst experience ever and I had my service dog with me. Flight was supposed to leave at 1:51 PM but the plane arrived late. They boarded us around 3 PM and kept us on the plane for an hour saying that due to weather conditions in Miami, we could not takeoff yet. After waiting for an hour, they deplaned. And then they will not give us our bags back that we could just leave and schedule for another flight. Every hour they kept updating saying we have to wait another hour without any explanation as to what was going on. Eventually, I went to customer service to change my ticket, but by the time I made it to the front of the line, they started boarding my flight again. And then when we got onto the flight, they said there were two flight attendants That were past their shift. They kept us on the plane for about another 40 minutes until they told us they had no other flight attendance and had to deplane again. Then I gave us hotel vouchers and told us we would be on a flight at 6 AM the next day. At this point it is about 9 PM. I get to the hotel with my dog, who hasn’t been able to go potty for about eight hours. When I arrived at the hotel, I got a text alert saying my flight has been canceled at 6 AM and they moved past to 5 AM, however the hotel shuttle doesn’t leave early enough to make it to the airport for 5 AM flight. So me and some other passengers got a cab after about three hours of sleep to get back to the airport. This was the worst experience ever.

Their computers were down upon arrival to the airport. They were unable to figure out how to board us. We were delayed over an hour and a half.

Delay. Flight was delayed in Washington.knew that connection was impossible as not enough time to switch terminals. The steward would not let me stay the night. So forced to Dallas.late night, after 10pm.hotel checkin was one hour. Passengers lined up only one girl to checkin at comfort inn. No food availability at that time. Had to leave early at 6:30 am to catch a flight at 8:45. Stressfull.

My experience with frontier staff at the Denver airport was absolutely horrible. The manager on duty was even worst if was the worst experience I have ever had, I have never been treated so poorly as a customer in my life! The staff was extremely rude, eye rolls and attitude and then refusal to help me at all. I wish I could never fly frontier again that’s how horrible it was!

Fecal matter in seat back pocket. Presumably from a kids diaper.

I didn't get to do this flight l, hard to review

Not good 😐 Over priced baggage fees Small hard seats No wifi or entertainment options 😕

Left Denver late, then sat on tarmac 30 min after arrival

Everything was good, 20/30 minutes late waiting on a crew member. It’s hard to keep employees. Or serious employees I know. I remember one flight from Houston of Frontiers was almost 18 hours late. And another 4 hours late very poor. But I would rather be late and safe than the on the news. Thank you.

Bought seats on the flight and they were supposed to be 2 and a jumpseat. Plane clearly changed and it was a regular 3 seat row. Asked for a refund and was denied. If I wanted to sit next to someone else I wouldn't have bought the seats..

Lost baggage on my connecting flight. 24 hours later, still no update on my bags.

It’s a cheap airline and I wish if they had better seats.

Seats are cramped and uncomfortable. You have to pay for everything and it is very expensive.

Book cheap flights from Denver to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Denver to Washington, D.C. found on KAYAK in the last 72 hours.
7/27Sat
nonstopUnited Airlines
3h 26mDEN-IAD
$99
6/25Tue
1 stopDelta
6h 33mDEN-IAD
$108
6/18Tue
nonstopUnited Airlines
3h 26mDEN-IAD
$109
6/18Tue
1 stopSun Country Air
15h 56mDEN-IAD
$111
6/3Mon
1 stopSun Country Air
15h 13mDEN-IAD
$113
6/26Wed
1 stopSun Country Air
15h 43mDEN-IAD
$114
6/24Mon
1 stopDelta
6h 33mDEN-IAD
$118
10/28Mon
1 stopAmerican Airlines
6h 39mDEN-IAD
$133
7/25Thu
1 stopAmerican Airlines
6h 55mDEN-IAD
$163
7/25Thu
2 stopsAllegiant Air
32h 06mDEN-IAD
$205

Search by stops

Search by airline

Search by price

Last minute flights from Denver to Dulles Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Denver to Washington, D.C. that are departing in the next 10 days.
6/2Sun
multi-stopSun Country Air
20h 21mDEN-IAD
6/4Tue
multi-stopSun Country Air
23h 29mIAD-DEN
$285
6/2Sun
multi-stopSun Country Air
20h 21mDEN-IAD
6/5Wed
multi-stopSun Country Air
6h 28mIAD-DEN
$300
6/2Sun
multi-stopDelta
6h 37mDEN-IAD
6/11Tue
multi-stopDelta
7h 44mIAD-DEN
$326
6/1Sat
multi-stopDelta
6h 37mDEN-IAD
8/18Sun
multi-stopDelta
8h 30mIAD-DEN
$347
6/2Sun
nonstopUnited Airlines
3h 26mDEN-IAD
6/4Tue
multi-stopUnited Airlines
6h 01mIAD-DEN
$367
6/2Sun
nonstopUnited Airlines
3h 26mDEN-IAD
6/7Fri
multi-stopUnited Airlines
6h 51mIAD-DEN
$377
6/2Sun
multi-stop
14h 11mDEN-IAD
6/4Tue
multi-stop
5h 56mIAD-DEN
$379
6/2Sun
multi-stop
14h 11mDEN-IAD
6/5Wed
multi-stop
6h 28mIAD-DEN
$397
5/30Thu
multi-stopAmerican Airlines
5h 55mDEN-IAD
6/6Thu
multi-stopAmerican Airlines
6h 01mIAD-DEN
$533
6/1Sat
multi-stopAmerican Airlines
6h 55mDEN-IAD
6/8Sat
multi-stopAmerican Airlines
7h 58mIAD-DEN
$535

Search by stops

Search by airline

Search by price

Denver - Washington Dulles Airport Flights

Departure:

Denver (DEN)United States

Destination:

Washington Dulles Airport (IAD)United States

Return flight deals:

Washington Dulles Airport - Denver

Cabin classes:

$817
$960
$708
$246