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Find cheap flights from Islip to the United States from $28

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 9/8. 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
Wed 7/10
Wed 7/17

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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$498
Las Vegas
Las Vegas1 stop$206
Miami
Miami3 stops$482
Boston
Boston3 stops$437
Washington, D.C.
Baltimore1 stop$186
Denver
Denver1 stop$180
Fort Lauderdale
Fort Lauderdalenonstop$76
Atlanta
Atlantanonstop$64
Tampa
Tampanonstop$118
Houston
Houston1 stop$222
San Diego
San Diego3 stops$594

Good to know

Low season

September

High season

August

Cheapest flight

$28
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 $46 one-way - $92 round-trip; Orlando $44 one-way - $100 round-trip; Myrtle Beach $52 one-way - $92 round-trip
  • Morning departure is around 1% more expensive 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 78 reviews
6.8Food
8.1Comfort
6.5Entertainment
8.4Boarding
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.

Flight was canceled less than 6 hours before takeoff, rebooked on a flight that was twice as long and left earlier so we couldn’t make it, when using text support option took over 2 hours to speak with someone.

Not enough help at airport during boarding process. Flight was delayed. Overall WORST flying experience I’ve ever had. Will NEVER FLT SPIRIT AGAIN

Terrible legroom, seats do not recline, tray table the size of an iPhone, delayed flight, have to pay 5$ to get a cup of water onboard.

Could have TV/Movie and some water ou soda free

Flight was good and clean but delayed over an hour on the return flight.

The non stop flight and able to go into Atlantic City airport. They could lower the prices. It starts out low but then if you want to bring luggage and pick your seat the price goes up quite a bit.

Flight got diwngraded last minute and left us stranded. I was told I’ll be given credit for my luggage and seat upgrades but haven’t got anything yet

We can’t predict circumstances like this ahead of time, but I give your staff a hats off for immediately giving us updated informations.

It was nice! There was a very unhappy child in front of us and the flight attendant did a great job calming the child. I was impressed.

The plane was not on time for boarding or departure or arrivals.

I strongly dislike Frontier. I find them barebones, the seats not particularly comfortable, the nickel and diming is maddening, the app is TERRIBLE - super confusing to navigate, and the last 4 frontier flights I have flown have been on AVERAGE 2 hours late, one ruining a fancy night out in Vegas with reservations made well in advance, which was nodded to with a measly 5000 miles, which translates to almost nothing. At least credit a free checked bag or something.

8 hr delay. had to buy another ticket with another airline

Four and a half hour delay in total. What frustrates me most is the poor communication and disorganization.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

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.

Book cheap flights from Islip to the United States

Recent round-trip flight deals

8/31Sat
nonstopFrontier
3h 04mISP-FLL
9/4Wed
nonstopFrontier
2h 55mFLL-ISP
$76
10/29Tue
nonstopFrontier
3h 04mISP-FLL
11/2Sat
nonstopFrontier
2h 55mFLL-ISP
$78
7/23Tue
nonstopFrontier
2h 59mISP-MCO
7/30Tue
nonstopFrontier
2h 39mMCO-ISP
$78
7/25Thu
nonstopFrontier
2h 59mISP-MCO
8/8Thu
nonstopFrontier
2h 39mMCO-ISP
$82
6/22Sat
nonstopFrontier
3h 07mISP-FLL
6/25Tue
nonstopFrontier
2h 59mFLL-ISP
$85
7/18Thu
nonstopFrontier
3h 05mISP-FLL
7/25Thu
nonstopFrontier
2h 50mFLL-ISP
$88
8/30Fri
nonstopBreeze Airways
1h 25mISP-RIC
9/2Mon
nonstopBreeze Airways
1h 16mRIC-ISP
$98
7/4Thu
nonstopBreeze Airways
1h 21mISP-ORF
7/8Mon
nonstopBreeze Airways
1h 13mORF-ISP
$98
7/15Mon
nonstopBreeze Airways
1h 30mISP-PWM
7/19Fri
nonstopBreeze Airways
1h 14mPWM-ISP
$103
6/27Thu
nonstop
1h 35mISP-RDU
6/30Sun
1 stop
10h 06mRDU-ISP
$168

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Recent one-way flight deals

9/8Sun
nonstopFrontier
3h 04mISP-FLL
$28
9/15Sun
nonstopFrontier
3h 04mISP-FLL
$30
9/13Fri
nonstopFrontier
3h 04mISP-FLL
$34
9/14Sat
nonstopFrontier
3h 04mISP-FLL
$36
6/16Sun
nonstopFrontier
3h 07mISP-FLL
$39
7/23Tue
nonstopFrontier
2h 59mISP-MCO
$39
6/17Mon
nonstopBreeze Airways
1h 30mISP-PWM
$49
7/8Mon
nonstopBreeze Airways
1h 30mISP-PWM
$54
7/19Fri
nonstopBreeze Airways
1h 25mISP-RIC
$54
7/4Thu
1 stop
9h 54mISP-FLL
$87

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Last minute flights from Islip to the United States

Last minute flight, train and bus deals

6/15Sat
nonstopFrontier
3h 05mISP-MCO
6/18Tue
nonstopFrontier
2h 39mMCO-ISP
$138
6/11Tue
nonstopFrontier
3h 07mISP-FLL
6/13Thu
nonstopFrontier
2h 59mFLL-ISP
$147
6/14Fri
nonstopBreeze Airways
1h 30mISP-PWM
6/17Mon
nonstopBreeze Airways
1h 14mPWM-ISP
$148
6/13Thu
nonstopBreeze Airways
1h 21mISP-ORF
6/23Sun
nonstopBreeze Airways
1h 13mORF-ISP
$153
6/13Thu
multi-stopFrontier
6h 45mISP-RDU
6/22Sat
multi-stopFrontier
9h 24mRDU-ISP
$155
6/11Tue
nonstopFrontier
3h 07mISP-FLL
6/12Wed
nonstopFrontier
2h 59mFLL-ISP
$157
6/11Tue
multi-stopFrontier
8h 24mISP-TPA
6/18Tue
multi-stopFrontier
7h 34mTPA-ISP
$157
6/13Thu
nonstopBreeze Airways
1h 21mISP-ORF
6/17Mon
nonstopBreeze Airways
1h 13mORF-ISP
$158
6/13Thu
multi-stopFrontier
11h 59mISP-TPA
6/18Tue
multi-stopFrontier
7h 34mTPA-ISP
$158
6/13Thu
nonstop
1h 35mISP-RDU
6/22Sat
multi-stop
9h 24mRDU-ISP
$168

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Islip - United States Flights

Departure:

Islip (ISP)United States

Return flight deals:

United States - Islip

Cabin classes:

$234
$268
$50

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