In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

How far in advance should I book a flight from Burlington to Islip, New York?

Find a great deal and save up to 168% by booking at least 47 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Burlington to Islip, New York within the next two weeks, with the cheapest ticket starting at $334.

What is the cheapest month to fly from Burlington to Islip, New York?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, November can be a great choice for travel to Islip, New York. Flights to Islip, New York from Burlington in November are about $317 on average during November, but can be found for as low as $221.

What is the cheapest time of day to fly from BTV to ISP?

When flying from Burlington to Islip, New York, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from Burlington to Islip?

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

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

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

$357+ Flights from Burlington to Islip, NY

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Cheap flight deals from Burlington to Islip

Round-trip from	$964 (FlightHub)
One-way from	$357 (Priceline)
Popular in	July
Cheapest in	November
Average price	$377

From Burlington to Islip Long Island

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One-way flight from Burlington to Islip Long Island

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Highest demand for flights based on searches. 5% potential increase in price ($17 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Burlington to Islip

Cheapest flights from Burlington to Islip
Explore the most affordable flight options available from Burlington to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Fri 8/16:07 pmBTV - ISP

2 stops19h 17mMultiple Airlines

Sat 8/24:33 pmISP - BTV

2 stops6h 39mMultiple Airlines

Deal found 7/28

$857

Sat 8/166:30 pmBTV - ISP

3 stops24h 29mBreeze Airways

Sat 8/237:25 pmISP - BTV

2 stops16h 09mBreeze Airways

Deal found 7/29

$964

Best flights from Burlington to Islip
Discover carefully curated flight deals from Burlington to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Sat 8/166:30 pmBTV - ISP

3 stops24h 29mBreeze Airways

Sat 8/237:25 pmISP - BTV

2 stops16h 09mBreeze Airways

Deal found 7/29

$964

Fri 8/810:37 amBTV - ISP

2 stops9h 24mMultiple Airlines

Sat 8/97:30 amISP - BTV

2 stops15h 42mMultiple Airlines

Deal found 7/26

$986

Last-minute flights from Burlington to Islip
Discover last-minute flight deals from Burlington to Islip. Data last updated July 29, 2025 and is based on user searches.

Fri 8/16:07 pmBTV - ISP

2 stops19h 17mMultiple Airlines

Sat 8/24:33 pmISP - BTV

2 stops6h 39mMultiple Airlines

Deal found 7/28

$857

Fri 8/810:37 amBTV - ISP

2 stops9h 24mMultiple Airlines

Sat 8/97:30 amISP - BTV

2 stops15h 42mMultiple Airlines

Deal found 7/26

$986

Sat 8/166:30 pmBTV - ISP

3 stops24h 29mBreeze Airways

Sat 8/237:25 pmISP - BTV

2 stops16h 09mBreeze Airways

Deal found 7/29

$964

One-way flights from Burlington to Islip
Search for one-way flight options from Burlington to Islip. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Mon 9/1511:19 amBTV - ISP

1 stop8h 48mBreeze Airways

Deal found 7/29

$357

Mon 9/154:40 pmBTV - ISP

2 stops27h 21mMultiple Airlines

Deal found 7/29

$473

Fly from

Fly to

Route

Depart

Return

Price

BurlingtonIslip

BTV - ISP

BTVISP

Burlington

Sat 8/16

6:30 pm-6:59 pm

3 stops24h 29m

Islip Long Island

Sat 8/23

7:25 pm-11:34 am

2 stops16h 09m

$964

BurlingtonIslip

BTV - ISP

BTVISP

Burlington

Fri 8/8

10:37 am-8:01 pm

2 stops9h 24m

Islip Long Island

Sat 8/9

7:30 am-11:12 pm

2 stops15h 42m

$986

BurlingtonIslip

BTV - ISP

BTVISP

Burlington

Mon 9/15

11:19 am-8:07 pm

1 stop8h 48m

$357

BurlingtonIslip

BTV - ISP

BTVISP

Burlington

Mon 9/15

4:40 pm-8:01 pm

2 stops27h 21m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Burlington to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Burlington 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 Burlington to Islip

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

Currently, January is the cheapest month in which you can book a flight from Burlington to Islip, New York (average of $108). Flying from Burlington to Islip, New York in November is currently the most expensive (average of $213). 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.

Reviews of airlines servicing Islip

Peruse reviews from past customers who have flown with Breeze Airways from Burlington to Islip to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Breeze Airways

8.0

Very good

190 reviews

Reviews

1 / 13

8.0

Excellent

Anonymous,Jul 2025

RIC - BDL

All went smoothly but the announcements from the crew were way to fast--approaching inaudible. Pilot announcements were perfect!

Breeze Airways

8.0

Very good

190 reviews

Breeze Airways

8.0

Very good

190 reviews

Reviews

1 / 13

8.0

Excellent

Anonymous,Jul 2025

RIC - BDL

All went smoothly but the announcements from the crew were way to fast--approaching inaudible. Pilot announcements were perfect!

Related info for your journey

Can I find deals for flights from Burlington to Islip that include hotel bookings?
Yes. In addition to deals on Burlington to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Burlington to Islip?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Burlington to Islip.
Can I find deals for business class flights from Burlington to Islip?
Yes. Cheapflights offers flight deals from Burlington to Islip 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 Burlington to Islip, New York?
Currently, January is the cheapest month in which you can book a flight from Burlington to Islip, New York (average of $108). Flying from Burlington to Islip, New York in November is currently the most expensive (average of $213). 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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$357+ Cheap flights from Burlington to Islip, NY (BTV - ISP)

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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Burlington to Islip with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Burlington to Islip

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Burlington to Islip

Cheapest flights from Burlington to IslipExplore the most affordable flight options available from Burlington to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Burlington to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Burlington to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Burlington with our price prediction graph.

Cheapflights Insights

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

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

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated July 29, 2025.

Peruse reviews from past customers who have flown with Breeze Airways from Burlington to Islip to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

How can I find direct flights from Burlington to Islip?

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

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

Traveling to a place near Islip?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Burlington to Islip

See prices for flight routes from nearby airports that may be better suited for you.

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Travel Smart

Cheapest flights from Burlington to Islip
Explore the most affordable flight options available from Burlington to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.