ISP - BOS

$83 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 11/12. 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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Flights 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

Tue, Oct 14 - Sat, Oct 18
Southwest Logo
6:00 am - 11:20 amISP-BOS
5h 20m1 stop
Southwest Logo
8:15 am - 12:10 pmBOS-ISP
3h 55m1 stop
$165Southwest
Find Deal
Wed, Aug 6 - Wed, Aug 13
Southwest Logo
12:30 pm - 5:05 pmISP-BOS
4h 35m1 stop
Southwest Logo
9:05 am - 3:10 pmBOS-ISP
6h 05m1 stop
$189Southwest
Find Deal
Wed, Aug 6 - Wed, Aug 13
Southwest Logo
6:05 am - 10:30 amISP-BOS
4h 25m1 stop
Southwest Logo
5:20 am - 3:10 pmBOS-ISP
9h 50m2 stops
$194Southwest
Find Deal
Tue, Oct 14 - Sat, Oct 18
Southwest Logo
4:55 pm - 10:35 pmISP-BOS
5h 40m1 stop
Southwest Logo
5:20 am - 4:15 pmBOS-ISP
10h 55m2 stops
$227Southwest
Find Deal
Wed, Aug 6 - Wed, Aug 13
Southwest Logo
12:30 pm - 10:30 pmISP-BOS
10h 00m2 stops
Southwest Logo
5:20 am - 3:10 pmBOS-ISP
9h 50m2 stops
$240Southwest
Find Deal
Wed, Nov 19 - Sun, Nov 23
Southwest Logo
12:55 pm - 7:10 pmISP-BOS
6h 15m1 stop
Southwest Logo
5:35 am - 12:50 pmBOS-ISP
7h 15m1 stop
$241Southwest
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Fri, Aug 1 - Sun, Aug 3
Frontier Logo
8:37 pm - 8:35 amISP-BOS
11h 58m1 stop
Frontier Logo
6:00 am - 1:04 pmBOS-ISP
7h 04m1 stop
$308Frontier
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Thu, Jul 24 - Fri, Jul 25
Frontier Logo
6:00 am - 8:35 amISP-BOS
26h 35m1 stop
Frontier Logo
9:40 am - 7:42 pmBOS-ISP
10h 02m1 stop
$310Frontier
Find Deal
Sat, Aug 2 - Mon, Aug 4
Frontier Logo
2:05 pm - 12:39 amISP-BOS
10h 34m1 stop
Frontier Logo
9:40 am - 7:52 pmBOS-ISP
10h 12m1 stop
$341Frontier
Find Deal
Sun, Aug 3 - Thu, Aug 7
 Logo
6:00 am - 8:35 amISP-BOS
26h 35m1 stop
 Logo
1:50 pm - 3:21 pmBOS-ISP
1h 31mnonstop
Useful Info

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 Sundays if you are looking for the best rates. For your return to Islip, you’ll find the best rates on Thursdays and the most expensive ones on Mondays.

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 $514 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 seasonJuly
High seasonMay
Cheapest flight$83
Best time to beat the crowds but there is an average 8% increase 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 $83 for a one-way ticket and $165 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?

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

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

    The Embraer 190 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, Southwest or JetBlue?

    The two airlines most popular with KAYAK users for flights from Islip to Boston are Southwest and JetBlue. With an average price for the route of $356 and an overall rating of 8.0, Southwest is the most popular choice. JetBlue is also a great choice for the route, with an average price of $175 and an overall rating of 7.3.

  • 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 $248 or less one-way and $502 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 airlines flying 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.
8.0
SouthwestOverall score based on 4252 reviews
8.6Crew
8.0Comfort
8.1Boarding
7.6Entertainment
7.0Food
Airline reviews

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

4.0 OkaySudhir, Jul 2025LGA - MCI
Read more Southwest reviews

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

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Sat on tarmac for 2 hours and then missed my connecting flight

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

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.

Love the mosaic program, being able to move to an extra space seat for free is awesome

Smooth boarding and friendly crew. Unfortunately as soon as we boarded the unit that provides air circulation failed. The pilot informed us and requested maintenance technicians to check it out. The plane became uncomfortably warm without any fresh air coming in. Plus the repair delayed our departure. I am glad the maintenance crew were able to fix the problem. I also was without use of my tv monitor for the first 1/3rd of the trip.

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

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