$51 Find Cheap Flights from Islip to the United States - Compare and Save

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Cheap Flights from Islip to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Los Angeles
Los Angeles1 stop$487
Las Vegas
Las Vegas1 stop$346
San Francisco
San Francisco1 stop$390
Miami
Miami1 stop$282
Boston
Boston1 stop$377
Fort Lauderdale
Fort Lauderdale1 stop$198
Washington, D.C.
Baltimorenonstop$163
Denver
Denver1 stop$304
Seattle
Seattle2 stops$429
Atlanta
Atlanta2 stops$231
Tampa
Tampa1 stop$178
San Diego
San Diego1 stop$337
Honolulu
Honolulu2 stops$746
Philadelphia
Philadelphia2 stops$238
Los Angeles
Los Angeles1 stop$487
Las Vegas
Las Vegas1 stop$346
San Francisco
San Francisco1 stop$390
Miami
Miami1 stop$282
Boston
Boston1 stop$377
Fort Lauderdale
Fort Lauderdale1 stop$198
Washington, D.C.
Baltimorenonstop$163
Denver
Denver1 stop$304
Seattle
Seattle2 stops$429
Atlanta
Atlanta2 stops$231
Tampa
Tampa1 stop$178
San Diego
San Diego1 stop$337
Honolulu
Honolulu2 stops$746
Philadelphia
Philadelphia2 stops$238

Price, demand and travel trends for Islip to the United States flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Islip to the United States cheaper or more expensive than last year?

Fares from Islip to the United States are running about 15% higher than they were around this time last year, averaging $301 round-trip.

What are the cheapest fares from Islip to the United States right now?

Here are the cheapest round-trip fares from Islip to the United States on KAYAK in the last week:

• Concord Regional (USA) from $98
• Raleigh-Durham (RDU) from $102
• Myrtle Beach Intl (MYR) from $117
• Wilmington New Hanover County (ILM) from $117
• Richmond Byrd Intl (RIC) from $117

What’s the cheapest month to fly from Islip to the United States?

January is the cheapest time of year to fly, with average fares of $233. Prices are highest in April, when average flight costs increase to around $347.

When is the best time to book flights from Islip to the United States?

Book your flights 5 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 24% compared to booking last-minute (within 2 weeks of departure).

Which airport in the United States is the cheapest to fly to from Islip?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into the United States are:

• Concord Regional (USA) from $173
• Richmond Byrd Intl (RIC) from $198
• Norfolk (ORF) from $220

What’s the cheapest day to fly from Islip to the United States?

Saturday tends to be the cheapest day to fly from Islip to the United States, while Friday is the most expensive. Fares run about 9% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Islip to the United States?

Data from the past 12 months shows it's cheapest to fly to the United States during the night with average prices of $223. The morning is the most expensive time to fly, with average prices of $329.

Key details for Islip to the United States flights

Low season

October

Cheapest flight

$51
Beat the crowds with an average 26% drop in travelers.
The most popular month to fly with an average 30% increase in travelers.
One-way flight from Islip to Raleigh

Your Islip to the United States flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Islip to the United States?

    Yes. Fares from Islip to the United States are low right now. As a rule of thumb, a round-trip under $210 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Islip to the United States?

    Over the past 12 months, round-trip fares from Islip to the United States have ranged from $210 to $427.

  • What are the main airports serving the United States?

    The United States has 700 airports. The three busiest are Orlando (MCO) (34% of arrivals), Fort Lauderdale (FLL) (12%) and Myrtle Beach Intl (MYR) (8%).

  • What airlines fly nonstop from Islip to the United States?

    Based on the flight schedule for the next 3 months, 6 airlines operate nonstop flights from Islip to the United States, including:

    • Southwest
    • JetBlue
    • Breeze Airways
    • Avelo Airlines
    • Frontier
    • Cape Air

  • Where in the United States can I fly nonstop from Islip?

    You can fly nonstop from Islip to 13 destinations in the United States. Some of the most popular among KAYAK travelers include Orlando, Fort Lauderdale, Myrtle Beach, Tampa and Raleigh.

  • Is it cheaper to fly with a layover from Islip to the United States?

    Yes. Nonstop flights from Islip to the United States average $287 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Charleston (CHS) from $237
    • Myrtle Beach Intl (MYR) from $239
    • Wilmington New Hanover County (ILM) from $266

  • How long is a flight from Islip to the United States?

    Nonstop flights take 2h 27m on average. The fastest scheduled flight takes 1h 10m, from Islip Long Island (ISP) to Baltimore/Washington (BWI).

  • Which cabin classes are available on flights from Islip to the United States?

    On flights from Islip to the United States you can book Economy Class, Premium Economy Class or Business Class.

  • What are some popular landmarks in the United States?

    KAYAK travelers' favorite landmarks in the United States include:

    • Times Square
    • Universal Orlando Resort
    • New York City Center
    • San Antonio River Walk

  • What are the earliest and latest flights from Islip to the United States?

    The earliest nonstop flight from Islip to the United States departs at 5:00 am and the latest departs at 9:33 pm. Nonstop flights take about 2h 27m.

Your guide to booking Islip to the United States flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 5 weeks before your trip. KAYAK data shows fares in this window are around 24% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for January when flights are typically cheapest and avoid April when prices are at their highest.
  • Flying on Saturday is usually the cheapest. Flights on Friday cost about 9% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Concord Regional (USA) is the cheapest airport to fly into from Islip. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in New York, which is the most popular destination in the United States. From there, it's easy to continue on to other popular destinations such as Las Vegas, Chicago and Orlando.
  • If you want the shortest trip, choose the Islip to the United States nonstop route. If you'd rather save money, the route via Charleston (CHS) is usually the cheapest.

Reviews of the top 5 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.
8.2
Breeze AirwaysOverall score based on 327 reviews
8.4Boarding
6.7Food
8.2Comfort
8.8Crew
6.8Entertainment
Airline reviews

Driving 1.5 hours to connect in Charleston to New Haven CT was a waste. New Haven is the worst airport in the US. Everything is outside and this is an issue in bad weather. Zero parking. Only opening 2 hours before wheels up gives you no flexibility. I am done with Breeze. By the time i buy everything i need, im saving no money.

2.0 MediocreDenis, Oct 2026
Read more Breeze Airways reviews

Driving 1.5 hours to connect in Charleston to New Haven CT was a waste. New Haven is the worst airport in the US. Everything is outside and this is an issue in bad weather. Zero parking. Only opening 2 hours before wheels up gives you no flexibility. I am done with Breeze. By the time i buy everything i need, im saving no money.

Flight Grand Jct to Las Vegas the internet wasn't working. Flight Las Vegas to Grand Jct we didnt have internet & my air vents was broken making the plane a bit warm. I understand not having a lot of food choices for such a short flight, but not pretzels, cookies or anything offered & only free beverage choices were water, tea, or coffee; not even ginger ale or a soda. Like everything else, you get less & pay more these days.

Breeze Airways is a no nonsense, no extra fluff kind of airline. They have just the basics, boarding is short and easy, and the cost for flights are fair. Will definitely be flying Breeze again!

I thought I paid for a round trip for carry-on and my ticket only had one way when I purchased a round trip Didn't make sense to me .Not what you want to hear when it's time to go home.

Support for wheel chair was not good. Desk did not open until 2 hours before takeoff not check in time.

Boarding process was super smooth and the staff and crew were wonderful. Seats made me feel like I was being bent forward. Might be because I'm shorter and the puffy head rest pushes my head down. I would have liked to have been able to remove it

You get what you pay for. It’s like a bus but flying. No frills, no snacks. Leg room was fine, boarding was good.

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.

The flight wasn’t big on frills, which is fine with me. I flew into Islip MacArthur Airport, which saved me from having to go through LaGuardia to visit friends on Long Island. It was inexpensive and super convenient!

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

I liked the new boarding process. I thought the buyup options (legroom, early boarding) to be easy to request and reasonably priced. All the Southwest team from gate to in-flight were so nice.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

We had a 5 hour delay on the tarmac in Baltimore

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

It was one and half hour late... Not sure if any other experience matters.

It was 2 hours 45 minutes late, for no apparently clear reason.

It went well. Plane wasn't full. Will be great when assigned seating is in place

My bag was damaged and is now missing a wheel. I tried to buy a claim in on the website but it would not accept my confirmation # for submission. Other than that, everything else was good!

As always it was a pleasure to fly on southwest.

Packed old plane with uncomfortable seats. Great crew, especially Tara who was helpful to many. No water offered. Hard landing. Discount pricing is the benefit!

Flight was smooth. We boarded early and left Grand Rapids about a half hour ahead of schedule. We then arrived in Lakeland about 40 minutes early. Flights attendants (3) were welcoming and pleasant. Wish we would have at least been offered to buy a bottle of water. No beverage service at all.

I really liked the young man who checked me in and took my bags! He was so kind and was very helpful! I told my sister about the great service and him and she said that is why she flies Avelo Air.

The flight was delayed by a lot and the seats are pretty tight

Surprisingly was one of the better flights I’ve been on

Short 2-hour flight, we took off on time, ETA was earlier than stated, no interaction needed with stewards, no food, no entertainment on such a short flight.

Avelo provided exactly what I expected. They are a low-cost option with no frills but the experience was comfortable and the staff was great! I will be using them in the future for trips when cost is a priority for me.

Expect nothing and you will be fine. Seats are crammed.

Terrible landing. Uncomfortable seats. Great cabin crew-helpful and pleasant!

Tight fit in middle seat but OK for short flight. Crew was more interested in talking to each other than helping passengers - strickingly dissappointing. DAB is a great airport. New Haven sucks! Excellent value for the .

The flight attendant was snarky and the flight took off very late. I know it was an issue with air traffic control and the runways in Boston, so not really anyone's fault, but very frustrating, I missed an important meeting because of rgr delay. They didn't offer headphones to watch the TV, but luckily I remembered my own and was able to enjoy watching a movie.

The plane was filthy and worn - the seat pockets were stuffed with tattered food and torn pamphlets. The cleaning crew that came on as we were deboarding were grabbing handfulls of trash and perfunctorily wiping down tables with dishrags. It's been a while since I flew Jetblue and it used to be a great experience. After this flight I will avoid flying Jetblue again if there is any alternative.

JFK is the worst airport and JetBlue is the worst airline

Very poor help no one answering a question regarding seating. Very rude staff. They don’t care, as if it’s not part of their job. Flight was delayed for no good reason and no apologies given.

You did a great job rescheduling my cancelled flight. However, you made me pay for two seats for $118 even though the seats on the original flight were free. I think that was a very unfair thing to do.

A more comfortable seat. Padding would be really helpful but I've read the airlines don't want customers to be satisfied with economy seats.

Everything was good except checking bags . I had paid for two bags but it didn’t show so we had to do it again while people waited and we were struggling to get to our flight

Plane was delayed multiple times. I would like to request a refund. Was due to arrive Thursday evening ended up arriving Friday morning.

The security line at JFK was one of the longest I’ve ever experienced - probably 45 minutes. I don’t know if JetBlue has control over it, but it detracted from the overall experience. Entertainment had good options, but the volume control was a bit small to tap on and the screen had a fair amount of interference blips. Clearer picture would have been better.

I liked the entertainment on JetBlue, the service from JFK to JAX was terrible at best

Frontier is good until they cancel your flight. Way too many cancellations.

Flight was delayed but it was very smooth. Crew was very nice. Seats are uncomfortable but ok.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

Since they are a budget airline, I wasn’t expecting too much but they did some things well. They were on time, the plane was clean, boarding was fairly straightforward and the staff was cheerful and friendly. The only downside was comfort. The seats were fairly hard and after a 2 hour flight your rear end is not feeling so great. Maybe a little more cushion in the seats, Frontier!

Crew was excellent. Plane was small cramped Airbus A320. Seats were narrow.

They never updated the boarding pass on their apps to show their delay

Flight was a little late taking off. Seats are too upright, no ports to charge devices, no wifi, no entertainment

Be prepared for crowds and chaos upon arrival at the Orlando airport

Frontier system that tracts what you’ve paid for is horrible. I brought bags, tried to upgrade the weight of bag. Did it via the text service on their site. Got to the airport and they had no idea what was going on. Ended up paying way more than I was supposed to

More options for your flight from Islip to the United States

Complete your trip to the United States with a hotel stay or car rental