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$389+ Cheap flights from Islip to Burlington (ISP - BTV)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — BTV
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$389
(Kiwi.com)

Popular in

February

Cheapest in

April

Average price

$358
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 ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Wed 10/298:45 pmISP - BTV
2 stops17h 58mBreeze Airways
Sun 11/23:23 pmBTV - ISP
1 stop22h 22mBreeze Airways
Deal found 9/9$389
This KAYAK deal was found by Cheapflights users on 9/9. 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.
Thu 11/137:36 pmISP - BTV
2 stops15h 03mBreeze Airways
Sat 11/155:47 pmBTV - ISP
2 stops17h 13mBreeze Airways
Deal found 9/9$566
This KAYAK deal was found by Cheapflights users on 9/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/67:36 pmISP - BTV
2 stops15h 03mBreeze Airways
Sun 11/93:23 pmBTV - ISP
1 stop22h 22mBreeze Airways
Deal found 9/11$660
This KAYAK deal was found by Cheapflights users on 9/10. 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.
Mon 11/38:47 pmISP - BTV
2 stops37h 26mBreeze Airways
Sat 11/85:47 pmBTV - ISP
2 stops17h 13mBreeze Airways
Deal found 9/10$680
This KAYAK deal was found by Cheapflights users on 9/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/58:21 pmISP - BTV
3 stops18h 22mBreeze Airways
Sat 11/85:47 pmBTV - ISP
2 stops17h 13mBreeze Airways
Deal found 9/11$738
This KAYAK deal was found by Cheapflights users on 9/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/62:25 pmISP - BTV
1 stop21h 15mBreeze Airways
Sat 10/185:47 pmBTV - ISP
2 stops17h 13mBreeze Airways
Deal found 9/11$774

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 September 11, 2025.
Use the filters below to find and compare flights from Islip to Burlington that are best for you.

Fly from

Islip

Fly to

Burlington

Route

Depart

Return

Price

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Wed 10/29

8:45 pm-2:43 pm

2 stops17h 58m

Burlington

Sun 11/2

3:23 pm-1:45 pm

1 stop22h 22m

$389

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Thu 11/13

7:36 pm-10:39 am

2 stops15h 03m

Burlington

Sat 11/15

5:47 pm-11:00 am

2 stops17h 13m

$566

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Wed 11/5

8:21 pm-2:43 pm

3 stops18h 22m

Burlington

Sat 11/8

5:47 pm-11:00 am

2 stops17h 13m

$738

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Mon 11/3

8:47 pm-10:13 am

2 stops37h 26m

Burlington

Sat 11/8

10:53 am-6:56 pm

3 stops32h 03m

$849

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Thu 11/6

7:36 pm-10:39 am

2 stops15h 03m

Burlington

Sun 11/9

3:23 pm-8:07 pm

3 stops28h 44m

$850

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Thu 9/25

7:36 pm-10:39 am

2 stops15h 03m

Burlington

Mon 9/29

11:19 am-8:07 pm

1 stop8h 48m

$900

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Mon 10/6

8:47 pm-10:13 am

2 stops37h 26m

Burlington

Sat 10/18

10:53 am-6:56 pm

3 stops32h 03m

$952

IslipBurlington

ISP - BTV

ISPBTV

Islip Long Island

Fri 10/3

2:25 pm-10:13 am

2 stops19h 48m

$534

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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 to Burlington?

Currently, January is the cheapest month in which you can book a flight from Islip to Burlington (average of $327). Flying from Islip to Burlington in December is currently the most expensive (average of $441). 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 to Burlington?

    A quick flight from Islip to Burlington can take about 17h 58m. Breeze Airways provides one of the quickest options available for as low as $389. Airlines will cover a distance of 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 to Burlington?

    Currently, January is the cheapest month in which you can book a flight from Islip to Burlington (average of $327). Flying from Islip to Burlington in December is currently the most expensive (average of $441). 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

Traveling to a place near Burlington?

Book flights to Burlington if you plan to visit one of these locations
South Burlington
Shelburne

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