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STL - BOS

$73 Find cheap flights from St. Louis to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Boston departing on 7/30. 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 7/4
Thu 7/11

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Boston.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Boston.
In the last 7 days travelers have searched 44,060,346 times on KAYAK, and here is why:

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Cheap flight deals from St. Louis to Boston (STL-BOS)

 
These are the cheapest deals for flights from St. Louis to Boston 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 St. Louis to Boston

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from St. Louis to Boston.

Recent one-way flight deals from St. Louis to Boston

Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Boston found on KAYAK recently.

Recent last minute flight deals from St. Louis to Boston

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from St. Louis to Boston.

Recent direct flight deals from St. Louis to Boston

The latest deals for direct flights from St. Louis to Boston so you can sit back and relax without the need for a layover.

Cheap bus & train deals from St. Louis to Boston

Find recent round-trip train or bus tickets from St. Louis to Boston.

All round-trip flight deals to Boston

The cheapest plane tickets to Boston found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:11 am - 11:38 pmSTL-BOS
12h 27m1 stop
8:27 pm - 5:29 pmBOS-STL
22h 02m1 stop
$142Spirit Airlines
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Tue, Jul 16 - Wed, Jul 17
7:33 pm - 8:26 amSTL-BOS
11h 53m1 stop
12:32 pm - 8:42 pmBOS-STL
9h 10m1 stop
$160Frontier
Find Deal
Tue, Jul 9 - Wed, Jul 17
7:29 pm - 8:26 amSTL-BOS
11h 57m1 stop
12:32 pm - 8:42 pmBOS-STL
9h 10m1 stop
$168Frontier
Find Deal
Thu, Jul 4 - Wed, Jul 10
10:11 am - 6:28 pmSTL-BOS
7h 17m1 stop
5:56 pm - 4:45 pmBOS-STL
23h 49m3 stops
Tue, Jul 16 - Thu, Jul 18
5:25 pm - 11:56 pmSTL-BOS
5h 31m1 stop
8:27 pm - 5:29 pmBOS-STL
22h 02m1 stop
Fri, Jul 12 - Wed, Jul 17
5:25 pm - 11:56 pmSTL-BOS
5h 31m1 stop
6:00 am - 2:29 pmBOS-STL
9h 29m1 stop
$270Sun Country Air
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Fri, Jul 12 - Fri, Jul 19
7:02 pm - 10:40 pmSTL-BOS
2h 38mnonstop
8:03 am - 3:32 pmBOS-STL
8h 29m1 stop
$292American Airlines
Find Deal
Thu, Aug 22 - Wed, Aug 28
6:51 pm - 10:34 pmSTL-BOS
2h 43mnonstop
7:00 am - 9:12 amBOS-STL
3h 12mnonstop
$311American Airlines
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Thu, Jul 4 - Wed, Jul 10
6:00 am - 2:15 pmSTL-BOS
7h 15m1 stop
6:00 am - 11:42 amBOS-STL
6h 42m1 stop
$330Delta
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Tue, Jul 9 - Tue, Jul 16
3:49 pm - 1:09 amSTL-BOS
8h 20m1 stop
6:00 am - 2:19 pmBOS-STL
9h 19m1 stop
$357Delta
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Wed, Jul 10 - Thu, Jul 18
10:11 am - 11:38 pmSTL-BOS
12h 27m1 stop
$73Spirit Airlines
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Tue, Jul 30
3:23 pm - 2:49 pmSTL-BOS
22h 26m2 stops
$81Spirit Airlines
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Tue, Jun 25
3:23 pm - 9:17 amSTL-BOS
16h 54m1 stop
$82Spirit Airlines
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Tue, Jul 9
3:23 pm - 9:17 amSTL-BOS
16h 54m1 stop
$83Spirit Airlines
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Tue, Jul 9
7:44 pm - 8:16 amSTL-BOS
11h 32m1 stop
$86Frontier
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Tue, Jun 25
10:36 pm - 6:58 amSTL-BOS
7h 22m1 stop
$88Frontier
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Fri, Jun 28
1:42 pm - 10:42 pmSTL-BOS
8h 00m1 stop
$127American Airlines
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Wed, Jun 26
6:08 am - 3:12 pmSTL-BOS
8h 04m1 stop
$140American Airlines
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Mon, Jul 1
5:31 pm - 1:20 amSTL-BOS
6h 49m1 stop
$187United Airlines
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Mon, Jun 24
6:00 am - 12:20 pmSTL-BOS
5h 20m1 stop
$215Delta
Find Deal
Thu, Jun 13
6:10 pm - 10:29 amSTL-BOS
15h 19m1 stop
9:19 pm - 10:57 amBOS-STL
14h 38m2 stops
Fri, Jun 7 - Mon, Jun 17
6:55 pm - 1:03 pmSTL-BOS
17h 08m1 stop
6:10 am - 4:32 pmBOS-STL
11h 22m1 stop
$320Spirit Airlines
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Sun, Jun 9 - Sun, Jun 16
6:10 pm - 10:29 amSTL-BOS
15h 19m1 stop
5:35 pm - 10:57 amBOS-STL
18h 22m2 stops
Fri, Jun 7 - Mon, Jun 10
11:34 am - 7:45 amSTL-BOS
19h 11m2 stops
6:35 am - 11:45 amBOS-STL
30h 10m2 stops
Sat, Jun 8 - Wed, Jul 10
6:10 pm - 10:29 amSTL-BOS
15h 19m1 stop
5:45 am - 10:57 amBOS-STL
30h 12m3 stops
Fri, Jun 7 - Mon, Jun 10
10:36 pm - 6:58 amSTL-BOS
7h 22m1 stop
9:16 am - 5:16 pmBOS-STL
9h 00m1 stop
$338Frontier
Find Deal
Fri, Jun 7 - Mon, Jun 17
6:51 pm - 10:34 pmSTL-BOS
2h 43mnonstop
7:00 am - 9:07 amBOS-STL
3h 07mnonstop
$602American Airlines
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Fri, Jun 7 - Mon, Jun 17
6:51 pm - 10:34 pmSTL-BOS
2h 43mnonstop
10:17 am - 2:16 pmBOS-STL
4h 59m1 stop
$612American Airlines
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Fri, Jun 7 - Mon, Jun 17
10:15 am - 4:24 pmSTL-BOS
5h 09m1 stop
8:45 am - 3:41 pmBOS-STL
7h 56m2 stops
$692United Airlines
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Fri, Jun 7 - Mon, Jun 10
8:05 am - 4:24 pmSTL-BOS
7h 19m1 stop
8:45 am - 3:41 pmBOS-STL
7h 56m2 stops
$863United Airlines
Find Deal
Thu, Jun 6 - Mon, Jun 10
6:51 pm - 10:34 pmSTL-BOS
2h 43mnonstop
7:00 am - 9:12 amBOS-STL
3h 12mnonstop
$311American Airlines
Find Deal
Thu, Jul 4 - Wed, Jul 10
7:02 pm - 10:40 pmSTL-BOS
2h 38mnonstop
7:00 am - 9:14 amBOS-STL
3h 14mnonstop
$316American Airlines
Find Deal
Tue, Aug 13 - Sat, Aug 17
6:51 pm - 10:29 pmSTL-BOS
2h 38mnonstop
7:00 am - 9:14 amBOS-STL
3h 14mnonstop
$326American Airlines
Find Deal
Fri, Aug 2 - Wed, Aug 7
11:38 am - 3:21 pmSTL-BOS
2h 43mnonstop
7:00 am - 9:00 amBOS-STL
3h 00mnonstop
$331American Airlines
Find Deal
Sat, Sep 7 - Sat, Sep 14
7:02 pm - 10:40 pmSTL-BOS
2h 38mnonstop
7:00 am - 9:14 amBOS-STL
3h 14mnonstop
$341American Airlines
Find Deal
Fri, Aug 16 - Mon, Aug 19
6:51 pm - 10:29 pmSTL-BOS
2h 38mnonstop
7:00 am - 9:12 amBOS-STL
3h 12mnonstop
$346American Airlines
Find Deal
Tue, Jul 16 - Thu, Jul 18
7:00 pm - 10:40 pmSTL-BOS
2h 40mnonstop
7:00 am - 9:08 amBOS-STL
3h 08mnonstop
$351American Airlines
Find Deal
Thu, Oct 17 - Mon, Oct 21
1:38 pm - 5:07 pmSTL-BOS
2h 29mnonstop
7:00 am - 9:15 amBOS-STL
3h 15mnonstop
$352American Airlines
Find Deal
Mon, Oct 28 - Fri, Nov 1
7:02 pm - 10:40 pmSTL-BOS
2h 38mnonstop
7:00 am - 9:14 amBOS-STL
3h 14mnonstop
$355American Airlines
Find Deal
Tue, Aug 13 - Fri, Aug 16
6:51 pm - 10:34 pmSTL-BOS
2h 43mnonstop
7:00 am - 9:12 amBOS-STL
3h 12mnonstop
$356American Airlines
Find Deal
Wed, Jul 3 - Mon, Jul 8

Flights from St. Louis to Boston - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Boston 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 St. Louis to Boston?

The average price of all flights from St. Louis to Boston clicked on KAYAK for each day over the last 12 months.
For St. Louis to Boston, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Boston back to St. Louis, the best deals are generally found on Tuesday, with Monday being the most expensive.

What is the cheapest month to fly from St. Louis to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Boston, 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 St. Louis to Boston is February, where tickets cost $312 on average. On the other hand, the most expensive months are April and November, where the average cost of tickets is $484 and $462 respectively.

How far in advance should I book a flight from St. Louis to Boston?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Boston, 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 St. Louis to Boston, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 63 days before departure.

Which airlines provide the cheapest flights from St. Louis to Boston?

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 St. Louis to Boston found on KAYAK was with Spirit Airlines for $73. Spirit Airlines proposed a round-trip connection from $142 and Frontier from $160.

Which airlines fly non-stop between St. Louis and Boston?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from St. Louis to Boston.
There are 2 airlines that fly nonstop from St. Louis to Boston. They are American Airlines and Southwest. The cheapest airline for this route is American Airlines, with the best one-way deal found costing $226. On average, the best prices for this route can be found at American Airlines.

How many flights are there between St. Louis and Boston per day?

Each day, there are between 3 and 8 nonstop flights that take off from St. Louis and land in Boston, with an average flight time of 2h 35m. The most common departure time is 6:00 pm and most flights take off in the morning. Each week, there are 39 flights. The most frequent day of departure is Friday, when 21% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between St. Louis and Boston?

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 St. Louis to Boston take?

The average nonstop flight takes 2h 29m, covering a distance of 1,043 miles.

What’s the earliest departure time from St. Louis to Boston?

Early birds can take the earliest flight from St. Louis at 7:45 am and will be landing in Boston at 11:20 am.

What’s the latest departure time from St. Louis to Boston?

If you prefer to fly at night, the latest flight from St. Louis to Boston jets off at 9:20 pm and lands at 12:50 am.

Good to know

Low season

January

High season

October

Cheapest flight

$73
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from St. Louis to Boston

When to book flights from St. Louis to Boston

Are your dates flexible? Find out the best times to travel from St. Louis to Boston 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 flights from St. Louis to Boston

  • Which facilities at BOS airport are convenient for traveling mothers?

    BOS airport has Mamava Suites and nursing rooms dedicated to traveling mothers. You can change your baby's diaper in the nursing rooms beside each restroom of Terminal A. Mothers looking for private spaces to feed their babies or pump breasts can check out Mamava Suites inside Terminal B.

  • Where can I eat or grab a snack at BOS airport?

    BOS airport hosts multiple food stations, cafés, and restaurants inside each terminal. Visit Berkshire Farms Market in Terminal A if you need lunch or breakfast. This restaurant offers vegan and vegetarian dishes. Those in a hurry can pass by Green Express in Terminal C for grab-and-go service. For snacks, check out Dunkin' on the Arrivals of Terminal C.

  • Does STL airport provide religious services to its travelers?

    Yes. STL airport has a religious facility called St. Louis Interfaith Chapel. If you need a private and quiet space at the airport to meditate, pray, or conduct a mass, go to the interfaith chapel. Scheduled Muslim prayers, Protestant services and Catholic mass are available here daily. It is located near E33 on the airside of Terminal 2.

  • Which pet facilities are accessible at STL airport?

    STL airport has pet relief areas where you can take your furry friend to stretch and hydrate before the flight. There are outdoor pet relief areas outside Terminal 1 next to exit 6 and next to exit 15 of Terminal 2. If you prefer indoor relief areas go to Concourses A and C of T1 or Concourse E of T2.

  • What is the cheapest flight from St. Louis to Boston?

    In the last 3 days, the lowest price for a flight from St. Louis to Boston was $73 for a one-way ticket and $142 for a round-trip.

  • Do I need a passport to fly between St. Louis and Boston?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from St. Louis to Boston?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Boston, also known as Boston Logan Intl.

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Boston?

    All the following airlines offer inflight Wi-Fi service on the St. Louis to Boston flight route: American Airlines, JetBlue, Breeze Airways, Iberia, Delta, British Airways, and Finnair.

  • Which aircraft models fly most regularly from St. Louis to Boston?

    The Embraer 175 is the aircraft model that flies most regularly on the St. Louis to Boston flight route.

  • Which airline alliances offer flights from St. Louis to Boston?

    oneworld is the only airline alliance operating flights between St. Louis and Boston.

  • On which days can I fly direct from St. Louis to Boston?

    There are nonstop flights from St. Louis to Boston on a daily basis.

  • Which is the best airline for flights from St. Louis to Boston, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Boston are Delta and United Airlines. With an average price for the route of $401 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 $440 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Boston?

    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 St. Louis to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from St. Louis 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 St. Louis to Boston?

    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 Boston with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BOS 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 St. Louis to Boston?

    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 Boston from St. Louis 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 St. Louis to Boston

  • Looking for a cheap flight? 25% of our users found flights on this route for $245 or less one-way and $391 or less round-trip.
  • Disabled travelers flying out of St. Louis can consider booking their flights at Lambert St. Louis International Airport (STL). The airport has enhanced accessibility to accommodate travelers with special needs. Inside the airport’s terminals are elevators, visual and audible signs, automatic doors and braille signage. Adapted telephones and wheelchair-accessible toilets are also available throughout the airport. The airlines offer wheelchair service.
  • STL airport is a family-friendly airport. Here you will find an International Play Port managed by The Magic House St. Louis Children's Museum near gate C3. This play area features a kids' version of the MetroLink light rail train, kid-sized plane, and air traffic control tower. Take your kids to the port to burn all their energy while waiting for the flight.
  • STL airport hosts a USO lounge called The James S. McDonnell USO in Terminals 1 and 2 designated for US military members flying out through the airport. Sleep areas, a computer center, and free luggage storage are available in this lounge. Other lounges at STL airport are Wingtips Lounge on the airside of Terminal 2 and the American Airlines lounge called Admirals Club on the airside between Concourses B and C.
  • Boston Logan International Airport (BOS) is an ideal landing airport for corporate travelers since it hosts on-site hotels, including the Hilton Boston Logan Airport Hotel, connected to the terminals through a sky bridge and Hyatt Regency Boston Harbor. These hotels have a business center, meeting rooms, and conference facilities. You can checkin at any hotel to catch up with your work or hold meetings.
  • Travelers flying in through BOS airport need not worry about how they will get to their various destinations since the airport offers convenient ground transportation services. If you are heading to various locations in Boston, including Harvard University and Peabody, take the MBTA buses operating routes 448 and 459 from the terminals. Those heading to the city center can opt for taxis outside each terminal.
See more tips

Prefer to fly non-stop from St. Louis to Boston?

Find which airlines fly direct from Lambert-St Louis to Logan Intl, which days they fly and book direct flights.

Nonstop departures

Lambert-St Louis to Boston Logan Intl

Monday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Tuesday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Wednesday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Thursday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Friday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Saturday

Southwest, American Airlines, Iberia, +1 more

Southwest, American Airlines, +2 more

Sunday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

See more direct flights

Nonstop returns

Boston Logan Intl to Lambert-St Louis

Monday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Tuesday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Wednesday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Thursday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Friday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Saturday

Southwest, American Airlines, Qatar Airways

Southwest, American Airlines, +1 more

Sunday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

See more direct flights
See more direct flights

Top 5 airlines serving from St. Louis to Boston

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Boston. 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 St. Louis to Boston? 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 10392 reviews
8.0Entertainment
8.6Crew
7.9Comfort
8.2Boarding
7.4Food
Airline reviews

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

2.0 MediocreFelipe, Jun 2024DTW - SAN
Read more about Delta reviews

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

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.

Great! I love Jet Blue. My favorite airline! Very efficient, clean and timely.

We were told that our flight would be delayed for 90+ minutes because of weather, so we went to get something to eat only to have them randomly start boarding 15 minutes after the announcement, with no warning.

Entertainment... No earphones passed out. Many including me couldn't use the TV. Legroom was good. Crew was indifferent and a bit surly. Free wifi was a nice convenience. Check in desk location was unknown. Gate number on the boarding passes was wrong.

Confusing. Delay updates were out of whack At one point it said my flight was 25 hours. Three gate changes and two delays only to change back to original departure time. Gate announcer and on board flight attendant (Alejandro) making the announcements was impossible to understand due to accent and speed of speech. After beverage service the rear flight attendants sat back there on their phones. No refills no checking in, one sweep through for trash collection. Very impersonal. Bring back Coke products

Business class is great. New airplane, very comfortable, better than some of the major airlines I am used to

Delayed by almost an hour - I also noticed that all JetBlue flights departing from PBI were delayed yet the weather was perfect.

I loved the wifi, much better than Delta. Seats were old. and bathrooms dingy.

There was no wheelchair or wheelchair escort at the gate..unacceptable

Delayed 4 hours because of maintenance issue they knew about all day. Get another plane. Time is precious!

I liked that boarding and take off were timely despite a 15 minute delay due to weather. The pilot communicated with us the entire flight keeping us informed re: turbulance and slight delays on the runway after we landed.

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Not worth the price of premium class ticket paid, felt more like steerage.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

I had a great flight. Everything went smoothly and the flight arrived early.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

On time take off…US cabins look tired and need of refresh!

Equipment swap led to 2+ hour delay on international flight. And to top it off, boarding took forever.

Wretched scheduling - they got themselves into a critical crew situation and didn’t try to address it until 15 minutes before they had to cancel my flight

They cancelled two flight and got us onto another airline, which was also delayed.

Nothing, terrible travel experience due to weather and maintenance delays and was left stranded in Austin.

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

28 hour delay at Fort Worth/Dallas airport, part due to weather which was unavoidable, but various other reasons - no pilot, no fa, mechanical problem, plane too small, too big, crew out of flying time, seat configuration problems.... endless and hourly updates with a different excuse. Finally told us about 3.00 am, that the flight was delayed to hours later.

Experience was bad. 3.5 hour delay for a 2.5 hour trip. There was no r Transparency about the reason for the delay and it was done 30 mins at a time.

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

There were delays on both ends. It made it less than excellent. This plane was great though

AA1537 the AC was not working properly. It was very hot and uncomfortable.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

9 hours of delay!! Was not able to check my luggage that I paid for!!!

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

I am very disappointed with Frontier Airlines. They cancelled our flight because they couldn't find a crew member, and then didn't get us to our connecting flight. We had to cancel our whole vacation. We were promised flight and hotel vouchers, but they never sent them.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Book cheap flights from St. Louis to Boston

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Boston found on KAYAK in the last 72 hours.
7/30Tue
1 stopSpirit Airlines
12h 27mSTL-BOS
$73
6/25Tue
2 stopsSpirit Airlines
22h 26mSTL-BOS
$81
7/9Tue
1 stopSpirit Airlines
16h 54mSTL-BOS
$82
7/9Tue
1 stopSpirit Airlines
16h 54mSTL-BOS
$83
6/25Tue
1 stopFrontier
11h 32mSTL-BOS
$86
6/28Fri
1 stopFrontier
7h 22mSTL-BOS
$88
6/26Wed
1 stopAmerican Airlines
8h 00mSTL-BOS
$127
7/1Mon
1 stopAmerican Airlines
8h 04mSTL-BOS
$140
6/24Mon
1 stopUnited Airlines
6h 49mSTL-BOS
$187
6/13Thu
1 stopDelta
5h 20mSTL-BOS
$215

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Last minute flights from St. Louis to Boston

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 St. Louis to Boston that are departing in the next 10 days.
6/7Fri
multi-stop
15h 19mSTL-BOS
6/17Mon
multi-stop
14h 38mBOS-STL
$314
6/9Sun
multi-stopSpirit Airlines
17h 08mSTL-BOS
6/16Sun
multi-stopSpirit Airlines
11h 22mBOS-STL
$320
6/7Fri
multi-stop
15h 19mSTL-BOS
6/10Mon
multi-stop
18h 22mBOS-STL
$322
6/8Sat
multi-stop
19h 11mSTL-BOS
7/10Wed
multi-stop
30h 10mBOS-STL
$328
6/7Fri
multi-stop
15h 19mSTL-BOS
6/10Mon
multi-stop
30h 12mBOS-STL
$333
6/7Fri
multi-stopFrontier
7h 22mSTL-BOS
6/17Mon
multi-stopFrontier
9h 00mBOS-STL
$338
6/7Fri
nonstopAmerican Airlines
2h 43mSTL-BOS
6/17Mon
nonstopAmerican Airlines
3h 07mBOS-STL
$602
6/7Fri
nonstopAmerican Airlines
2h 43mSTL-BOS
6/17Mon
multi-stopAmerican Airlines
4h 59mBOS-STL
$612
6/7Fri
multi-stopUnited Airlines
5h 09mSTL-BOS
6/10Mon
multi-stopUnited Airlines
7h 56mBOS-STL
$692
6/6Thu
multi-stopUnited Airlines
7h 19mSTL-BOS
6/10Mon
multi-stopUnited Airlines
7h 56mBOS-STL
$863

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St. Louis - Boston Flights

Departure:

St. Louis (STL)United States

Destination:

Boston (BOS)United States

Return flight deals:

Boston - St. Louis

Cabin classes:

$692
$1,184
$1,332
$313