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Find cheap flights from Islip to the United States from $29

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to the United States departing on 6/5. 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

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Best United States Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Los Angeles
Los Angeles2 stops$499
Las Vegas
Las Vegas1 stop$232
Miami
Miami1 stop$428
Boston
Boston2 stops$457
Washington, D.C.
Baltimore1 stop$250
Denver
Denver1 stop$180
Fort Lauderdale
Fort Lauderdalenonstop$72
Atlanta
Atlantanonstop$102
Tampa
Tampanonstop$98
Houston
Houston1 stop$225

Good to know

Low season

September

High season

August

Cheapest flight

$29
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Islip to Fort Lauderdale

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Islip to the United States?

    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 Islip to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to the United States from Islip 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 Islip to the United States?

    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 the United States with an airline and back to Islip with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to the United States?

    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 the United States from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to the United States

  • Looking for a cheap flight? 25% of our users found tickets from Islip to the following destinations at these prices or less: Fort Lauderdale $44 one-way - $88 round-trip; Orlando $39 one-way - $102 round-trip; Myrtle Beach $50 one-way - $92 round-trip
  • Morning departure is around 3% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 4 airlines serving from Islip to the United States

 
Need help choosing which airline to fly with from Islip to the United States? 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.
8.1
Breeze AirwaysOverall score based on 77 reviews
8.3Boarding
6.8Food
6.5Entertainment
8.1Comfort
8.9Crew
Airline reviews

The only thing that would make the experience better is a little more leg room and the overhead bins are very low. I hit my head when I was settling into the middle seat and was nervous about poking my eye on the corner of a lowered bin when I was deplaning.

8.0 ExcellentKaren, Apr 2024CAK - LAS
Read more about Breeze Airways reviews

The only thing that would make the experience better is a little more leg room and the overhead bins are very low. I hit my head when I was settling into the middle seat and was nervous about poking my eye on the corner of a lowered bin when I was deplaning.

It helps manage expectations to know that this is a discount airline. I brought my own snacks so that I wouldn't have to buy something if I got hungry or thirsty for soda during the flight. One of my seat mates was unaware that he would have to pay $4 for a Coke and was a bit upset. He hadn't listened to the flight attendant say "Drinks for purchase?". All of the employees I interacted with were friendly and professional. My one complaint is that the overhead bins are very low when they are open. I was heading for the middle seat and unexpectedly hit the top of my head on the bottom of the open overhead bin. The headrests were also a little uncomfortable. But overall, for the price, it was a decent value, and I would fly Breeze again.

Flight was on time. The crew was efficient and kind.

Did not like the fact that I was charged to take on a bag I usually put in the overhead

My flight was delayed, not by much.?very good communication during fest and waiting to board.

Communication with airline electronically was difficult. No number seemed available to talk to customer service.

What could have been better is if Discover credit card would be able to purchase food

Crew was inconsistent in instructions in advising passengers about seat backs during take off. Perfunctory announcements except from cabin.

The experience with Breeze was really great. The app makes managing flights easy. You can check in on there 24 hours in advance, and your boarding pass is there, too. The flight crew and the staff at both our airports were wonderful. Snacks and drinks were reasonably priced. The seats were very comfortable, they even had adjustable headrests on every seat. The only downside is not having entertainment or Wi-Fi available onboard.

The price is amazing. I was worried about how the flight would be as I never flew then. Seats were very comfortable. We had lots of legroom. The Akron airport was really nice. Overall it didn't have the stress we usually experience with flying. Highly recommend

The flight was excellent. The crew was welcoming and attentive.

Run out of snack choices. Why are the seats not padded for your butt? Are we sitting on blocks of wood or metal for $250-300 a pop? This ain’t spirit. Let’s get it together people

Going through JFK’s security is a mess. The TSA security said no shoes on the bins. So, we place our shoes in the belt and they came out all over the belt. Boarding was delayed and Flight as well.

There were multiple delays but JetBlue tried to make the boarding and departure process as quick and efficient as possible. The crew was as detached from reality as could be, meaning: not very friendly and just doing things by the numbers.

40 minute delay before take off after boarding flight. Bright lights throughout night flight due Issues with light panels. In flight Entertainment nonfunctional

Another horrible Jet Blue experience. This airline has suffered the biggest decline of all from best to worst. TVs didn’t work (again). internet was temperamental. Boarded late and couldn’t get organized to serve snacks.

I hate their constant delays! It’s as if I cannot confidently make plans for timing when I'm traveling with them. I slept through it, so all I can say is it was good.

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

No WiFi No TV Bag of chips I guess it could be worse.

From bag drop to boarding, it was great. In-flight is a little different. The seats were a little uncomfortable for that long of a flight. The rest of the cabin crew except for Eva was wonderful. Eva was not friendly at all. I've had to personally encounter her twice in-flight. First time was when I had to go to the lavatory in the back of the plane, and since it was the first for me to board such tiny plane, I didn't know we were using the crew toilet. She was giving me an attitude while telling me where and how to open it since it's not the regular push to open type of door. The second one was when I had to throw trash then use the lavatory again. I asked where to throw them, and unfortunately she was the only crew in the back doodling on her phone, she had to point it out to me with an attitude then told me to wait on the carpet, which I understand because I didn't realize that, but she could have been nicer. After all, I'm a paying customer, and assisting a passenger who isn't knowledgeable about the aircraft is one of the things she's there for. The rest of the experience and crew from bag drop to in-flight were excellent except for her.

No food not even water offered unless you buy it and no usb in the seat but other than that everything was good

Because our flight from marsh Harbor to Fort Lauderdale was over three hours delayed it caused us to miss our flight in Fort Lauderdale. Because we missed that flight, it cost us nearly $100 apiece for four different travelers which totaled nearly $400. We are seeking a reimbursement for the flight that we missed in Fort Lauderdale Florida.

Flight expected to leave at 6:40 pm ended leaving at 8:00 am the following day. I slept in a cold airport. Never again Spirit for me…

The flight was on time and nice as always for me with spirit but the cabin crew were not good. They left the lights on on a red eye for the entire flight.

This was the return leg of my journey with Spirit Airlines. Despite its reputation, I found no issues as it got me from point A to B safely and without delay, especially with no mechanical delays, which is fantastic in my book! The staff, from ground crew to cabin crew, were all pleasant and hassle-free. The flight was smooth from takeoff to landing. I have absolutely no complaints about this no-frills airline!

I got a one-way, last-minute nonstop flight from PDX to BWI for only $125. Yes, I got nicked $79 more for a checked suitcase and $89 more for the BIG SEAT option, but it was worth it, even with $4.50 for coffee and $10 for a snack (the latter no different than any other airline). The grand total was still less flying on any other airline.

It was the worst ever, i will be filing a lawsuit to get a refund. Our flight was delayed 4 hours so we would miss our connecting flight, we were not rebooked to our destination the same day, we were not offered any options to get home on the same day despite being clear that we absolutely cannot get stranded at night due to family, we were forced to book our own flights on a different airline to get home, and spririt is refusing a refund because our flight wasn't cancelled, only delayed. oh yeah, and they lost our luggage on the first part of the trip and you cannot get a hold of customer service when anything goes wrong, on hold for 30+ minutes. and their app breaks so you can't use that either.

This recognisable no-frills airline gets me from point-A to point-B. I was able to get to Chicago without stress. The checked baggage collection and reclaim could be improved.

The crew was the best and very accommodating I know you don't offer any complimentary items but water and coffee will not break the bank !!

My flight was cancelled!!! I had to spend 200.00 on another flight!!

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.

Worst experience I have seen. The flight was cancelled without any reason.

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!

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

Plane could have been more on time. More leg room .

I arrived 1 hour prior to boarding, and they said I was too late for a domestic flight. First time I heard that :-(

Check in online was easy. Seats aren’t very comfortable

Book cheap flights from Islip to the United States

Recent round-trip flight deals

6/4Tue
nonstopFrontier
3h 04mISP-FLL
6/18Tue
nonstopFrontier
2h 59mFLL-ISP
$72
6/5Wed
nonstopFrontier
3h 07mISP-FLL
6/8Sat
nonstopFrontier
2h 59mFLL-ISP
$75
6/12Wed
nonstopFrontier
3h 07mISP-FLL
6/26Wed
nonstopFrontier
2h 59mFLL-ISP
$77
6/4Tue
nonstopFrontier
3h 04mISP-FLL
6/8Sat
nonstopFrontier
2h 59mFLL-ISP
$80
6/7Fri
nonstopBreeze Airways
1h 30mISP-PWM
6/10Mon
nonstopBreeze Airways
1h 14mPWM-ISP
$98
7/19Fri
nonstopBreeze Airways
1h 25mISP-RIC
7/22Mon
nonstopBreeze Airways
1h 16mRIC-ISP
$98
7/18Thu
1 stop
6h 54mISP-RDU
7/21Sun
nonstop
1h 30mRDU-ISP
$154
6/27Thu
nonstop
1h 35mISP-RDU
7/1Mon
1 stop
11h 53mRDU-ISP
$156
8/12Mon
nonstopSouthwest
2h 45mISP-MCO
8/14Wed
nonstopSouthwest
2h 30mMCO-ISP
$271
8/12Mon
1 stopSouthwest
5h 30mISP-MCO
8/14Wed
1 stopSouthwest
6h 35mMCO-ISP
$272

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Recent one-way flight deals

6/5Wed
nonstopFrontier
3h 07mISP-FLL
$29
6/4Tue
nonstopFrontier
3h 04mISP-FLL
$31
6/16Sun
nonstopFrontier
3h 07mISP-FLL
$44
6/13Thu
nonstopFrontier
3h 07mISP-FLL
$46
6/24Mon
nonstopFrontier
3h 07mISP-FLL
$47
6/3Mon
nonstopFrontier
3h 08mISP-MCO
$47
6/7Fri
nonstopBreeze Airways
1h 30mISP-PWM
$49
6/28Fri
nonstopBreeze Airways
1h 25mISP-RIC
$49
8/23Fri
nonstopBreeze Airways
1h 30mISP-PWM
$54
6/17Mon
1 stop
8h 57mISP-FLL
$93

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Last minute flights from Islip to the United States

Last minute flight, train and bus deals

6/2Sun
nonstopFrontier
3h 04mISP-FLL
6/5Wed
nonstopFrontier
2h 59mFLL-ISP
$92
6/2Sun
nonstopFrontier
2h 59mISP-MCO
6/11Tue
nonstopFrontier
2h 39mMCO-ISP
$100
6/1Sat
nonstopFrontier
3h 04mISP-FLL
6/5Wed
nonstopFrontier
2h 59mFLL-ISP
$105
6/2Sun
nonstopFrontier
2h 59mISP-MCO
6/5Wed
nonstopFrontier
2h 39mMCO-ISP
$112
6/2Sun
nonstopFrontier
3h 04mISP-FLL
6/5Wed
nonstopFrontier
2h 59mFLL-ISP
$114
6/2Sun
nonstopFrontier
2h 59mISP-MCO
6/11Tue
nonstopFrontier
2h 45mMCO-ISP
$117
5/31Fri
nonstopBreeze Airways
1h 21mISP-ORF
6/3Mon
nonstopBreeze Airways
1h 13mORF-ISP
$144
5/30Thu
nonstopBreeze Airways
1h 21mISP-ORF
6/3Mon
nonstopBreeze Airways
1h 13mORF-ISP
$148
5/31Fri
nonstopBreeze Airways
1h 25mISP-RIC
6/3Mon
nonstopBreeze Airways
1h 16mRIC-ISP
$158
6/2Sun
multi-stop
10h 24mISP-FLL
6/5Wed
multi-stop
21h 55mFLL-ISP
$319

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Islip - United States Flights

Departure:

Islip (ISP)United States

Return flight deals:

United States - Islip

Cabin classes:

$234
$48

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