ISP - BOS

$112 Find Cheap Flights from Islip 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 Islip to Boston departing on 9/24. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Boston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Boston, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Islip to Boston (ISP-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Boston 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 Boston

Fri, Sep 12 - Mon, Sep 15
 Logo
5:05 pm - 1:48 pmISP-BOS
20h 43m1 stop
 Logo
2:53 pm - 10:40 amBOS-ISP
19h 47m1 stop
Wed, Sep 24 - Wed, Oct 1
 Logo
11:35 am - 1:48 pmISP-BOS
26h 13m1 stop
 Logo
12:20 pm - 10:55 amBOS-ISP
22h 35m1 stop
Wed, Sep 10 - Sun, Sep 14
 Logo
11:35 am - 1:48 pmISP-BOS
26h 13m1 stop
 Logo
2:53 pm - 10:40 amBOS-ISP
19h 47m1 stop
Tue, Sep 16 - Fri, Sep 19
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11:25 am - 1:48 pmISP-BOS
26h 23m1 stop
 Logo
2:53 pm - 10:55 amBOS-ISP
20h 02m1 stop
Wed, Oct 29 - Fri, Oct 31
Southwest Logo
11:40 am - 5:45 pmISP-BOS
6h 05m1 stop
Southwest Logo
5:30 pm - 9:10 pmBOS-ISP
3h 40m1 stop
$307Southwest
Find Deal
Thu, Oct 16 - Sun, Oct 19
Frontier Logo
9:37 pm - 8:33 amISP-BOS
10h 56m1 stop
Frontier Logo
9:18 am - 8:52 pmBOS-ISP
11h 34m1 stop
$363Frontier
Find Deal
Tue, Sep 23 - Wed, Sep 24
Southwest Logo
6:05 am - 12:15 pmISP-BOS
6h 10m1 stop
Southwest Logo
5:40 am - 11:55 amBOS-ISP
6h 15m1 stop
$368Southwest
Find Deal
Fri, Sep 12 - Sat, Sep 13
JetBlue Logo
11:35 am - 10:08 pmISP-BOS
10h 33m1 stop
JetBlue Logo
6:00 am - 3:23 pmBOS-ISP
9h 23m1 stop
$377JetBlue
Find Deal
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 Boston flights

Get data-powered insights and trends into flights from Islip 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 Islip to Boston?

The average price of all round-trip flights from Islip to Boston clicked on KAYAK for each day over the last 12 months.

When flying from Islip to Boston, you should consider leaving on a Saturday and avoid Thursdays if you are looking for the best rates. For your return to Islip, you’ll find the best rates on Fridays and the most expensive ones on Tuesdays.

What is the cheapest month to fly from Islip to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Islip 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 Islip to Boston is May, where tickets cost $157 (return) on average. On the other hand, the most expensive months are August and October, where the average cost of round-trip tickets is $520 and $502 respectively.

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

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 $520, prices are generally cheapest when you fly direct.

Good to know

Low seasonFebruary
Cheapest flight$112
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 58% lower on average.
Flight from Islip to Boston

When to book flights from Islip to Boston

Are your dates flexible? Find out the best times to travel from Islip 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 Islip to Boston

  • What is the cheapest flight from Islip to Boston?

    In the last 3 days, the lowest price for a flight from Islip to Boston was $112 for a one-way ticket and $216 for a round-trip.

  • Do I need a passport to fly between Islip and Boston?

    No, a passport isn't needed to fly from Islip to Boston. However, local authorities might ask for an official ID.

  • Which airlines offer Wi-Fi service onboard planes from Islip to Boston?

    Delta, JetBlue, Alaska Airlines, and American Airlines offer inflight Wi-Fi service on the Islip to Boston flight route.

  • Which aircraft models fly most regularly from Islip to Boston?

    The Tecnam P2012 Traveler is the aircraft model that flies most regularly on the Islip to Boston flight route.

  • On which days can I fly direct from Islip to Boston?

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

  • Which is the best airline for flights from Islip to Boston, Cape Air or Southwest?

    The two airlines most popular with KAYAK users for flights from Islip to Boston are Cape Air and Southwest. With an average price for the route of $520 and an overall rating of 9.3, Cape Air is the most popular choice. Southwest is also a great choice for the route, with an average price of $376 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Islip 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 Islip to Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston 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 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 Islip with another airline. Booking your flights between Islip 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 Islip 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 Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Islip to Boston

  • Looking for a cheap flight? 25% of our users found flights on this route for $304 or less one-way and $520 or less round-trip.

Prefer to fly direct from Islip to Boston?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Islip Long Island to Boston Logan Intl.
Find which airlines fly direct from Islip Long Island Airport to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

Islip Long Island to Boston Logan Intl

Monday

Cape Air

Cape Air

Tuesday

Cape Air

Cape Air

Wednesday

Cape Air

Cape Air

Thursday

Cape Air

Cape Air

Friday

Cape Air

Cape Air

Saturday

Cape Air

Cape Air

Sunday

Cape Air

Cape Air

See more direct flights

Direct returns

Boston Logan Intl to Islip Long Island

Monday

Cape Air

Cape Air

Tuesday

Cape Air

Cape Air

Wednesday

Cape Air

Cape Air

Thursday

Cape Air

Cape Air

Friday

Cape Air

Cape Air

Saturday

Cape Air

Cape Air

Sunday

Cape Air

Cape Air

See more direct flights

Reviews of the top 3 airlines serving from Islip to Boston

 
See real verified KAYAK customer reviews for airlines flying from Islip 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 Islip 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.
9.3
Cape AirOverall score based on 37 reviews
9.0Entertainment
9.4Crew
8.8Food
9.1Boarding
8.8Comfort
Airline reviews

Cape Air was great. Kayak was very poor. No ticket to print or explanation that they transferred to another service.

10.0 ExcellentTim, Aug 2025SLK - BOS
Read more Cape Air reviews

Cape Air was great. Kayak was very poor. No ticket to print or explanation that they transferred to another service.

It was good. It was convenient and frequent enough to be a very useful flight to reach more regional hubs. I felt comfortable enough to sleep. During the flight but loved seeing the countryside when I was awake.

It’s less complicated from Culebra to SJU airport. Next time I will prefer to leave from Isla Grande airport to Culebra !!

10 seat Cesna. Equal parts transportation and adventure. 20 minute hop at 10000 feet and 160 mph, sitting 10 feet from the pilot. Panoramic views of the island. Very simple boarding, very low stress. VQS airport tiny, undeveloped. Highly recommended flight, Cape Air doing a great job here.

We traveled in a small Cesna so there was no food or entertainment. The pilot was excellent enjoy being able to see the places we were flying above. It was an OK flight.

Very smooth flight and landing. Pilot delivered his safety instruction in such a monotone that it wasn’t easily understandable. Words were said but he didn't communicate to us. If he was communicating to someone he cared about, he would have used inflection and other nuances of speaking. Virtually all emphasis was removed so it was just blah blah blah (really fast, like the end of a Pharma commercial)

My pilot on Cape Air was AMAZING!!!! I hoping that next time I fly I have him as my pilot. He made me feel safe and secure in his skills.

I so appreciate this service into and out of Glendive. Always a good experience with crew and support team.

It was not what I had expected but it was a great way to see the landscape.

Pros: "ground crew, pilot, flight was smooth and gate connections to Jet Blue in Boston were fantastic!"
Cons: "leg room"

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.

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.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

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.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

There were mutliple delays. There was inconsistent, delayed, and poor communication regarding the delays.

Seats were not too comfortable; it was impossible to locate the underseat power outlet.

The check in and boarding process was a bit of a cluster. Two people at the counter to check in, three random lines that nobody knew which was for what, and people kept getting shuffled from one line to another for no apparent reason because then they’d get shuffled back and end up getting out further back in the line than they were originally. I only had to hand my already checked bag over and it took 45 minutes. I was never assigned a seat so when I tried to board I was pulled out of line again while someone had to try to manually assign me a seat. During the flight I got up to go to the bathroom, and there was an attendant in the aisle offering pillows etc and it was a 30 min wait unbuckled standing by the bathrooms because she said I couldn’t go past her. First and last time flying jet blue to be honest.

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

No overhead baggage room even though I was seated in row 2. Consequently had to check in my carry on bag. Baggage carousel was jammed. Took 45 min to get my bag.

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.

Great flight. Departed early, arrived early. However they were out of meals for sale. Also, we arrived early and the gate was not available so we sat on the taxiway for quite a while (not JetBlue’s fault).

It was too hot in the cabin. The AC did not help.

Everything you need to know for your flight from Islip to Boston

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