$39 Find Cheap Flights from Islip to North America

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 North America departing on 10/5. 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
1 adult, Economy

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Cheap Flights from Islip to North America

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angeles1 stop$187
Las Vegas
Las Vegas1 stop$181
Miami
Miami1 stop$237
San Francisco
San Francisco1 stop$410
Boston
Boston1 stop$216
Washington, D.C.
Baltimore1 stop$155
Denver
Denver1 stop$169
Seattle
Seattle1 stop$372
Fort Lauderdale
Fort Lauderdalenonstop$137
Atlanta
Atlanta1 stop$144
Tampa
Tampanonstop$62
Cancún
Cancún2 stops$462
Houston
Houston1 stop$264
Honolulu
Honolulu1 stop$913
San Diego
San Diego2 stops$468
Los Angeles
Los Angeles1 stop$187
Las Vegas
Las Vegas1 stop$181
Miami
Miami1 stop$237
San Francisco
San Francisco1 stop$410
Boston
Boston1 stop$216
Washington, D.C.
Baltimore1 stop$155
Denver
Denver1 stop$169
Seattle
Seattle1 stop$372
Fort Lauderdale
Fort Lauderdalenonstop$137
Atlanta
Atlanta1 stop$144
Tampa
Tampanonstop$62
Cancún
Cancún2 stops$462
Houston
Houston1 stop$264
Honolulu
Honolulu1 stop$913
San Diego
San Diego2 stops$468

Book Cheap Islip to North America Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to North America that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to North America

Fri, Sep 26 - Sun, Sep 28
Frontier Logo
5:12 pm - 8:16 pmISP-TPA
3h 04mnonstop
Frontier Logo
6:20 am - 9:04 amTPA-ISP
2h 44mnonstop
$62Frontier
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Fri, Jan 9 - Mon, Jan 12
Breeze Airways Logo
8:45 pm - 10:57 pmISP-CHS
2h 12mnonstop
Breeze Airways Logo
6:11 pm - 8:05 pmCHS-ISP
1h 54mnonstop
$78Breeze Airways
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Sun, Sep 7 - Sat, Sep 13
Southwest Logo
1:55 pm - 6:35 pmISP-MCO
4h 40m1 stop
Southwest Logo
8:50 am - 11:25 amMCO-ISP
2h 35mnonstop
$111Southwest
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Sat, Sep 13 - Wed, Oct 1
Southwest Logo
12:15 pm - 5:25 pmISP-MCO
5h 10m1 stop
Southwest Logo
10:40 am - 1:15 pmMCO-ISP
2h 35mnonstop
$115Southwest
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Wed, Oct 22 - Tue, Oct 28
JetBlue Logo
4:24 pm - 7:14 pmISP-MCO
2h 50mnonstop
JetBlue Logo
9:00 am - 11:38 amMCO-ISP
2h 38mnonstop
$131JetBlue
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Fri, Sep 26 - Thu, Oct 2
 Logo
5:12 pm - 8:16 pmISP-TPA
3h 04mnonstop
 Logo
7:00 am - 11:00 amTPA-ISP
4h 00m1 stop
Fri, Sep 12 - Mon, Sep 15
JetBlue Logo
11:35 am - 2:28 pmISP-FLL
2h 53mnonstop
JetBlue Logo
8:00 am - 10:50 amFLL-ISP
2h 50mnonstop
$137JetBlue
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Sun, Oct 5 - Thu, Oct 9
 Logo
11:40 am - 4:00 pmISP-TPA
4h 20m1 stop
 Logo
6:20 am - 9:04 amTPA-ISP
2h 44mnonstop
Thu, Nov 27 - Fri, Nov 28
Cape Air Logo
4:33 pm - 6:00 pmISP-BOS
1h 27mnonstop
Cape Air Logo
1:50 pm - 3:21 pmBOS-ISP
1h 31mnonstop
$390Cape Air
Find Deal
Fri, Oct 17 - Sun, Oct 19
Cape Air Logo
7:30 am - 8:57 amISP-BOS
1h 27mnonstop
Cape Air Logo
11:53 am - 1:24 pmBOS-ISP
1h 31mnonstop
$396Cape Air
Find Deal
Booking Insights

KAYAK's insights & trends for Islip to North America flights

Get data-powered insights and trends into flights from Islip to North America to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Islip to North America flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to North America from Islip found in the last 72 hours was to Atlanta, at $218 round-trip. The most popular route is from Islip (ISP) to Boston (BOS), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $501.

Can I save money by flying with a layover from Islip to North America?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $232, prices are generally cheapest when you fly direct.

Good to know

Low seasonJune
Cheapest flight$39
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Islip to Tampa

FAQs - booking North America flights

  • How does KAYAK find such low prices on flights from Islip to North America?

    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 North America.

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

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

    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 from Islip to North America with an airline and back with another airline.

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

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

Top tips for finding cheap flights to North America

  • Looking for a cheap flight? 25% of our users found tickets from Islip to the following destinations at these prices or less: Baltimore $176 one-way - $320 round-trip; Orlando $84 one-way - $134 round-trip; West Palm Beach $138 one-way - $222 round-trip

Reviews of the top 5 airlines serving from Islip to North America

 
Need help choosing which airline to fly with from Islip to North America? 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
SouthwestOverall score based on 4241 reviews
8.6Crew
7.0Food
8.0Comfort
7.5Entertainment
8.1Boarding
Airline reviews

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

2.0 MediocreMike, Aug 2025AUS - BWI
Read more Southwest reviews

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Other than a bit of a delay, everything was good. Again, the boarding process and picking seats is the only thing I don't enjoy.

If we are going to have to pay for luggage, make it easier to do. Put something on the app during check-in so I don't need to do it at the kiosk. I've done it twice recently and I ended up having to pay at the desk because something went wrong at the kiosk in Tampa.

Better and more food and drinks. Put msnbc and free speech tv on the news channel selection list.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

Our gate was changed twice, but since they were super close it wasn't an issue. We were delayed 90 mins or so, which wasn't great, but sometimes that's just what happens. Communication was the issue. We weren't kept informed about delays--with more information I would have gotten a real meal, taken a "bio break" and purchased a new book. Because another. flight was being updated more frequently about their delays, I thought ours would be shorter and stayed close by. It left me feeling more frustrated than was necessary.

Your feedback should include a "not applicable" button. There was no food, nor entertainment on our flight. Also, a snack on a short flight will be nice to have

Boarding at BDL gate 24 was confused, but balanced out by friendly, responsive gate attendants. The crew were friendly and made for a straightforward flight. Seats were fine, but the aircraft needs to go in for cabin maintenance. The air nozzles overhead were all loose and could not be closed or adjusted.

Head rest did not move, very uncomfortable. Staff was great. There was no entertainment, would be nice not to have to pay for snack.

Worst airline - on our flight down from MCO to EYW, there was a huuuuuge delay. We were supposed to take off 12p and it was pushed back to almost 2:30p. We boarded the plane and then sat on the tarmac forever because we were "over" weight and had to burn fuel. Rather than ask guests to volunteer and leave, they kept us on the plane. Finally a family decided to off board and take their luggage with them. Shortly after, we left the terminal but then the pilot told us we may have to sit at the end of the runway for 15-20mins to burn more fuel. Which we ended up doing and of course it started to rain. We finally took off 2:50p. We were supposed to land 1p and didn't land until 3:45p. Basically had time to scramble off the plane, grab our luggage, request transportation to our hotel, unpack, rinse off and hustle over to our 6:30p dinner ressy. It's a shame Breeze is the only non-stop airline from MCO to EYW. For this, not sure I'd ever go back to EYW - most def will not take Breeze again.

Flight was rescheduled from (originally) early Saturday departure to a late Sunday departure. Then the late Sunday departure was delayed again (weather) and got in very late. We’ve enjoyed Breeze a lot, but this particular experience was a little disappointing.

Breeze was good but the sandiego airport had traffic and waiting 1 hour in the plane till take off

The return flight was soooooo much colder than the departure flight to Connecticut! I appreciated the layover because I didn't have to change planes. The staff and the service were the best! Everyone was so professional and accommodating. Having internet was great, but for the movies the flight offers through the app could be updated. THANKS EVERYONE! I fly BREEZE every opportunity I can get.

The flight was comfortable with the usual slight turbulence. Macadamia Nuts would be great snacks to purchase in flight.

This is one of the worst trips that I have ever had. Ending up with an overnight delay. I’m not happy with the fact that they did not provide and set up the arrangement needed for lodging that we had to do it on our own. I also feel there should’ve been Compensation for food.

Worst flight experience ever flights canceled. JetBlue told us just did not even bother standing in line to come back in one and a half hours then without any information we had to go pick up all of our luggage and spend over $2000 in accommodation just to get home. JetBlue said that the next flight available for us to get home would be three days later. Absolutely absurd hasn’t offered to give us any compensation do not fly JetBlue horrible company. They said it was based on the weather and the weather is great in all locations that we would’ve been flying to total hoax. I think it’s a conspiracy theory.

flight was delayed for hours with no explanation. The plane was a very old aircraft.

Communication since no reason or explanation was given for 3 hrs delay

The flight departed more than 1 hour late. Leg room is bigger than most airlines

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

Communication with the customer and stay is important. Staff off with a minor inconvenience but it worked out of course. Also this was a very old Mint Class plane. They snuck this one in on us. The updated aircraft are much better.

The flight itself was fine, but the boarding process was extremely frustrating. There is no one scanning boarding passes - passengers just scan themselves and enter the jetway. By the time my husband and I got on the plane and were halfway to our seats they determined there were too many bags on the plane and everything at that point needed to be checked. This created a lot of unnecessary chaos. They should have alerted people before getting on the plane that they would need to start checking bags instead of waiting until people were already on the plane.

The best flight I’ve had in a while. The plane was like 25% capacity, if that. Smoothest boarding and deplaning process I’ve ever experienced. Wish all flights were this smooth.

In flight on demand didn't work at our seats. Only a single beverage/snack run.

The flight was delayed twice with minimal explanation. The terminal and airplane were filthy. The food voucher didn’t even cover a tiny pizza from a kiosk in the terminal. All in all, a pretty miserable experience for a flight to attend a funeral

I will use spirit more New clean aircraft Excellent crew ! Quick boarding process !

Everyone was kind for the most part. I did travel with children and paid for seats and even then it was not as suitable. I tried calling their customer service prior to check in and I was told they couldn't help me because I didn't purchase my tickets with them.

Flight was late, after my first leg was cancelled altogether causing me to spend $$$ with another carrier. Seating is ridiculously tight, I can't recommend spirit if I cant depend on them to get me there and back on time.

Wow truly top notch airline Efficient nice snacks courteous staff Fast boarding !

The staff was very very rude in Las Vegas when boarding the flight. When presenting the boarding ticket. Las Vegas flight, it was hot and stuffy, it smelled really bad.

Dear All, I have harassment and accident with the flight attendant . This is my phone to talk 8168073567, please, leave phone message . Regards Emily,

The incoming plane ✈️ was delayed 5 hours en route to Raleigh. My flight was delayed for 5 hours 😢. Finally boarded and then de boarded due to an AC problem. A very tough and long night.

Flight was on time but the amount of noise from several children and the kicking of my seat the entire flight was overwhelming.

I liked the check in procedure. The luggage charges and overweight cost can be better.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

sluggish boarding and arrival procedures, fake nice flight attendants, and lots of delays.

Disaster. They lied every step of the way. We ended up being delayed due to crew and then allegedly abandoned the flight because of a curfew at LGA. No rebooking to LGA at any reasonable time. No hotel. No meal vouchers. Had to sleep in the airport and fly to Newark instead. Will never fly Frontier again.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

Severe turbulence. Captain never came on to reassure passengers after things settled down.

My first flight was delayed 5 hours. The 2nd flight was canceled til the next day and the never even tried to compensate for it. Worse I was delayed again on the flight the rebooked me on.

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

The worst. They don’t follow procedure for boarding per group. Flight got delayed for no understandably reasons, they changed our destination from PR to Miami, left us inside a plane for more than 8 hours, then cancelled flight in Miami leaving us stranded. Poorly managed re-accommodation for a new flight and overnight stay so I have to spend in a new ticket and my own hotel room to been able to get to my office next day. Lost 2 days of work and as a doctor, patients loosing their appointments. to other flights and besides

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