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$348+ Cheap flights from Islip, NY to Burlington, VT (ISP - BTV)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — BTV
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
1 adult, Economy
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Cheap flight deals from Islip to Burlington

Cheapest flights from Islip to Burlington
Explore the most affordable flight options available from Islip to Burlington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.

This Booking.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2711:57 am
ISP
-
BTV
1 stop23h 47m
Breeze Airways
Mon 6/2912:36 pm
BTV
-
ISP
1 stop7h 27m
Breeze Airways
Deal found 3/15$715
This Gotogate deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/82:28 pm
ISP
-
BTV
2 stops19h 44m
Breeze Airways
Sun 5/1012:24 pm
BTV
-
ISP
1 stop25h 04m
Breeze Airways
Deal found 3/14$864
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/269:59 am
ISP
-
BTV
2 stops32h 04m
Multiple Airlines
Mon 3/306:43 pm
BTV
-
ISP
1 stop16h 31m
Multiple Airlines
Deal found 3/11$952
This Booking.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/262:28 pm
ISP
-
BTV
2 stops19h 44m
Breeze Airways
Sun 6/2812:24 pm
BTV
-
ISP
1 stop25h 04m
Breeze Airways
Deal found 3/14$1,028
This Gotogate deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/152:28 pm
ISP
-
BTV
2 stops19h 44m
Breeze Airways
Sun 5/1712:24 pm
BTV
-
ISP
1 stop25h 04m
Breeze Airways
Deal found 3/12$1,093
This KAYAK deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/102:31 pm
ISP
-
BTV
2 stops20h 02m
Breeze Airways
Sun 4/1212:23 pm
BTV
-
ISP
1 stop25h 08m
Breeze Airways
Deal found 3/15$1,222

Find flight deals from Islip to Burlington

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Burlington (BTV). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$715
(Booking.com)

One-way from

$348
(Kiwi.com)

Popular in

March

Cheapest in

April

Average price

$404
Provider with most accurate pricing for Islip Long Island-Burlington flight deals.
Search Deals
Provider most trusted by Cheapflights users for Islip Long Island-Burlington flights.
Search Deals
From Islip Long Island to Burlington
Search Deals
One-way flight from Islip Long Island to Burlington
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Burlington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 16, 2026.
Use the filters below to find and compare flights from Islip to Burlington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Sat 6/27

11:57 am-11:44 am

1 stop23h 47m

Burlington

Mon 6/29

12:36 pm-8:03 pm

1 stop7h 27m

$715

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Thu 3/26

9:59 am-6:03 pm

2 stops32h 04m

Burlington

Mon 3/30

6:43 pm-11:14 am

1 stop16h 31m

$952

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Fri 5/15

2:28 pm-10:12 am

2 stops19h 44m

Burlington

Sun 5/17

12:24 pm-1:28 pm

1 stop25h 04m

$1,093

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Fri 5/8

2:28 pm-10:12 am

2 stops19h 44m

Burlington

Sun 5/10

12:24 pm-8:03 pm

3 stops31h 39m

$1,157

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Fri 6/26

2:28 pm-10:12 am

2 stops19h 44m

Burlington

Sun 6/28

12:24 pm-8:03 pm

3 stops31h 39m

$1,209
Cheapest one-way

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Wed 4/29

6:49 pm-11:43 am

2 stops16h 54m

$392

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Wed 3/25

11:50 am-11:43 am

1 stop23h 53m

$394

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Thu 4/30

8:00 pm-10:33 am

2 stops38h 33m

$459

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Sat 4/4

11:50 am-11:43 am

1 stop23h 53m

$474

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Fri 4/24

4:07 pm-11:43 am

2 stops43h 36m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Islip to Burlington

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to Burlington in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Islip, New York-Burlington, Vermont flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Burlington, Vermont flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Burlington, Vermont flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Burlington, Vermont flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Burlington, Vermont flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Islip to Burlington

Have a flexible travel schedule? Discover the best time to fly to Burlington from Islip with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Islip to Burlington

What is the cheapest month to book a flight from Islip, New York to Burlington, Vermont?

Currently, April is the cheapest month in which you can book a flight from Islip, New York to Burlington, Vermont (average of $126). Flying from Islip, New York to Burlington, Vermont in October is currently the most expensive (average of $240). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Islip to Burlington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Islip, New York to Burlington, Vermont?

    There are many flights that can get you from Islip, New York to Burlington, Vermont in 23h 47m. Fly via Breeze Airways to get the fastest option. The distance from Islip, New York to Burlington, Vermont is about 254 mi.

  • Can I find deals for flights from Islip to Burlington that include hotel bookings?

    Yes. In addition to deals on Islip to Burlington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Burlington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Burlington.

  • Can I find deals for business class flights from Islip to Burlington?

    Yes. Cheapflights offers flight deals from Islip to Burlington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Islip, New York to Burlington, Vermont?

    Currently, April is the cheapest month in which you can book a flight from Islip, New York to Burlington, Vermont (average of $126). Flying from Islip, New York to Burlington, Vermont in October is currently the most expensive (average of $240). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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