When did momondo last update prices for flights from Buffalo Airport to Islip Long Island Airport?

Prices for flights from Buffalo Airport to Islip Long Island Airport were last updated today.

How many operators does momondo search for flights from Buffalo Airport to Islip Long Island Airport?

As of September 2026, there is 1 operator available to choose from for flights from Buffalo Airport to Islip Long Island Airport.

How old do you have to be to fly from Buffalo Airport to Islip Long Island Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to Islip Long Island Airport.

What documentation or ID do you need to fly to Islip Long Island Airport?

The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$129 Cheap Flights from Buffalo to Islip, New York in 2026/27

Find the cheapest flights from Buffalo to New York

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:25 pm - 10:40 pmBUF Buffalo-ISP Islip Long Island

6h 15m1 stop Baltimore/Washington

9:40 am - 3:20 pmISP Islip Long Island-BUF Buffalo

5h 40m1 stop Baltimore/Washington

$217Southwest

Tue, Oct 20 - Tue, Oct 27

4:25 pm - 8:00 pmBUF Buffalo-ISP Islip Long Island

3h 35m1 stop Baltimore/Washington

6:05 am - 2:35 pmISP Islip Long Island-BUF Buffalo

8h 30m2 stops Baltimore/Washington Nashville Intl

$222Southwest

Tue, Oct 20 - Tue, Oct 27

2:00 pm - 10:40 pmBUF Buffalo-ISP Islip Long Island

8h 40m2 stops Chicago Midway Baltimore/Washington

6:05 am - 2:35 pmISP Islip Long Island-BUF Buffalo

8h 30m2 stops Baltimore/Washington Nashville Intl

$227Southwest

Tue, Oct 20 - Tue, Oct 27

2:50 pm - 11:40 pmBUF Buffalo-ISP Islip Long Island

8h 50m1 stop Baltimore/Washington

5:40 pm - 12:10 amISP Islip Long Island-BUF Buffalo

6h 30m1 stop Baltimore/Washington

$232Southwest

Fri, Oct 23 - Mon, Oct 26

5:45 pm - 11:40 pmBUF Buffalo-ISP Islip Long Island

5h 55m1 stop Baltimore/Washington

5:35 am - 12:00 pmISP Islip Long Island-BUF Buffalo

6h 25m1 stop Baltimore/Washington

$304Southwest

Fri, Oct 30 - Sun, Nov 1

5:30 pm - 11:35 pmBUF Buffalo-ISP Islip Long Island

6h 05m1 stop Baltimore/Washington

5:40 pm - 11:50 pmISP Islip Long Island-BUF Buffalo

6h 10m1 stop Baltimore/Washington

$304Southwest

Fri, Nov 13 - Sun, Nov 15

5:45 pm - 11:40 pmBUF Buffalo-ISP Islip Long Island

5h 55m1 stop Baltimore/Washington

5:35 am - 3:15 pmISP Islip Long Island-BUF Buffalo

9h 40m2 stops Baltimore/Washington Nashville Intl

$309Southwest

Fri, Oct 30 - Sun, Nov 1

12:40 pm - 11:35 pmBUF Buffalo-ISP Islip Long Island

10h 55m2 stops Tampa Baltimore/Washington

5:40 pm - 11:50 pmISP Islip Long Island-BUF Buffalo

6h 10m1 stop Baltimore/Washington

$309Southwest

Fri, Nov 13 - Sun, Nov 15

12:53 pm - 6:00 pmBUF Buffalo-ISP Islip Long Island

29h 07m1 stop Orlando

6:25 pm - 12:59 pmISP Islip Long Island-BUF Buffalo

18h 34m2 stops Orlando Atlanta Hartsfield-Jackson

$363Frontier

Thu, Oct 15 - Sun, Oct 18

6:47 pm - 6:00 pmBUF Buffalo-ISP Islip Long Island

23h 13m2 stops Raleigh-Durham Orlando

6:25 pm - 12:59 pmISP Islip Long Island-BUF Buffalo

18h 34m2 stops Orlando Atlanta Hartsfield-Jackson

$557Frontier

Thu, Oct 15 - Sun, Oct 18

Cheap last minute flights

Enter your travel dates to find the best prices.

5:45 pm - 11:35 pmBUF Buffalo-ISP Islip Long Island

5h 50m1 stop Baltimore/Washington

5:40 am - 11:40 amISP Islip Long Island-BUF Buffalo

6h 00m1 stop Baltimore/Washington

$599Southwest

Fri, Oct 2 - Sun, Oct 4

12:35 pm - 5:00 pmBUF Buffalo-ISP Islip Long Island

4h 25m1 stop Baltimore/Washington

5:40 am - 11:40 amISP Islip Long Island-BUF Buffalo

6h 00m1 stop Baltimore/Washington

$599Southwest

Fri, Oct 2 - Sun, Oct 4

6:00 am - 10:15 amBUF Buffalo-ISP Islip Long Island

4h 15m1 stop Baltimore/Washington

10:55 am - 2:20 pmISP Islip Long Island-BUF Buffalo

3h 25m1 stop Baltimore/Washington

$599Southwest

Tue, Sep 29 - Wed, Sep 30

6:00 am - 2:55 pmBUF Buffalo-ISP Islip Long Island

8h 55m2 stops Baltimore/Washington Orlando

6:05 am - 12:30 pmISP Islip Long Island-BUF Buffalo

6h 25m1 stop Baltimore/Washington

$604Southwest

Tue, Sep 29 - Wed, Sep 30

5:45 pm - 11:35 pmBUF Buffalo-ISP Islip Long Island

5h 50m1 stop Baltimore/Washington

5:40 am - 5:10 pmISP Islip Long Island-BUF Buffalo

11h 30m2 stops Baltimore/Washington Orlando

$604Southwest

Fri, Oct 2 - Sun, Oct 4

6:00 am - 11:45 amBUF Buffalo-ISP Islip Long Island

5h 45m1 stop Baltimore/Washington

5:40 am - 5:10 pmISP Islip Long Island-BUF Buffalo

11h 30m2 stops Baltimore/Washington Orlando

$604Southwest

Fri, Oct 2 - Sun, Oct 4

5:30 am - 2:30 pmBUF Buffalo-ISP Islip Long Island

9h 00m2 stops Orlando Baltimore/Washington

5:40 am - 5:10 pmISP Islip Long Island-BUF Buffalo

11h 30m2 stops Baltimore/Washington Orlando

$609Southwest

Fri, Oct 2 - Sun, Oct 4

12:35 pm - 9:10 pmBUF Buffalo-ISP Islip Long Island

8h 35m2 stops Chicago Midway Baltimore/Washington

12:55 pm - 9:50 pmISP Islip Long Island-BUF Buffalo

8h 55m2 stops Baltimore/Washington Tampa

$609Southwest

Tue, Sep 29 - Wed, Sep 30

2:50 pm - 11:10 pmBUF Buffalo-ISP Islip Long Island

8h 20m2 stops Baltimore/Washington Orlando

5:40 am - 5:10 pmISP Islip Long Island-BUF Buffalo

11h 30m2 stops Baltimore/Washington Orlando

$609Southwest

Fri, Oct 2 - Sun, Oct 4

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Southwest flights from Buffalo to Islip, New York

Our best Southwest deals on Buffalo to Islip, New York flight tickets

Southwest

Oct 20

BUF4:25 pmBuffalo

6h 15m

1 stop

ISP10:40 pmIslip Long Island

Oct 27

ISP9:40 amIslip Long Island

5h 40m

1 stop

BUF3:20 pmBuffalo

$217

Southwest

Oct 20

BUF4:25 pmBuffalo

3h 35m

1 stop

ISP8:00 pmIslip Long Island

Oct 27

ISP6:05 amIslip Long Island

8h 30m

2 stops

BUF2:35 pmBuffalo

$222

Southwest

Oct 20

BUF2:00 pmBuffalo

8h 40m

2 stops

ISP10:40 pmIslip Long Island

Oct 27

ISP6:05 amIslip Long Island

8h 30m

2 stops

BUF2:35 pmBuffalo

$227

Frontier flights from Buffalo to Islip, New York

Our best Frontier deals on Buffalo to Islip, New York flight tickets

Frontier

Oct 15

BUF12:53 pmBuffalo

29h 07m

1 stop

ISP6:00 pmIslip Long Island

Oct 18

ISP6:25 pmIslip Long Island

18h 34m

2 stops

BUF12:59 pmBuffalo

$363

Frontier

Oct 15

BUF6:47 pmBuffalo

23h 13m

2 stops

ISP6:00 pmIslip Long Island

Oct 18

ISP6:25 pmIslip Long Island

18h 34m

2 stops

BUF12:59 pmBuffalo

$557

Frontier

Nov 24

BUF9:20 pmBuffalo

21h 46m

1 stop

ISP7:06 pmIslip Long Island

Nov 29

ISP4:40 pmIslip Long Island

20h 19m

2 stops

BUF12:59 pmBuffalo

$836

momondo Fare Finder

Use the filters below to find and compare flights from Buffalo to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BuffaloIslip

BUF Buffalo - ISP Islip Long Island

BUFISP

Buffalo

Tue 10/20

4:25 pm-10:40 pm

1 stop6h 15m

Islip Long Island

Tue 10/27

9:40 am-3:20 pm

1 stop5h 40m

$217

BuffaloIslip

BUF Buffalo - ISP Islip Long Island

BUFISP

Buffalo

Tue 10/20

4:25 pm-8:00 pm

1 stop3h 35m

Islip Long Island

Tue 10/27

6:05 am-2:35 pm

2 stops8h 30m

$222

BuffaloIslip

BUF Buffalo - ISP Islip Long Island

BUFISP

Buffalo

Tue 10/20

2:00 pm-10:40 pm

2 stops8h 40m

Islip Long Island

Tue 10/27

6:05 am-2:35 pm

2 stops8h 30m

$227

BuffaloIslip

BUF Buffalo - ISP Islip Long Island

BUFISP

Buffalo

Fri 10/23

2:50 pm-11:40 pm

1 stop8h 50m

Islip Long Island

Mon 10/26

5:40 pm-12:10 am

1 stop6h 30m

$232

BuffaloIslip

BUF Buffalo - ISP Islip Long Island

BUFISP

Buffalo

Fri 10/30

5:45 pm-11:40 pm

1 stop5h 55m

Islip Long Island

Sun 11/1

5:35 am-12:00 pm

1 stop6h 25m

$304

BuffaloIslip

BUF Buffalo - ISP Islip Long Island

BUFISP

Buffalo

Fri 11/13

5:30 pm-11:35 pm

1 stop6h 05m

Islip Long Island

Sun 11/15

5:40 pm-11:50 pm

1 stop6h 10m

$304

BuffaloIslip

BUF Buffalo - ISP Islip Long Island

BUFISP

Buffalo

Fri 10/30

5:45 pm-11:40 pm

1 stop5h 55m

Islip Long Island

Sun 11/1

5:35 am-3:15 pm

2 stops9h 40m

$309

BuffaloIslip

BUF Buffalo - ISP Islip Long Island

BUFISP

Buffalo

Fri 11/13

12:40 pm-11:35 pm

2 stops10h 55m

Islip Long Island

Sun 11/15

5:40 pm-11:50 pm

1 stop6h 10m

$309

BuffaloIslip

BUF Buffalo - ISP Islip Long Island

BUFISP

Buffalo

Thu 10/15

12:53 pm-6:00 pm

1 stop29h 07m

Islip Long Island

Sun 10/18

6:25 pm-12:59 pm

2 stops18h 34m

$363

BuffaloIslip

BUF Buffalo - ISP Islip Long Island

BUFISP

Buffalo

Thu 10/15

6:47 pm-6:00 pm

2 stops23h 13m

Islip Long Island

Sun 10/18

6:25 pm-12:59 pm

2 stops18h 34m

$557

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Buffalo to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Buffalo to Islip Long Island?

Frontier, Southwest, and JetBlue are the most popular carriers operating from Buffalo to Islip Long Island

What airlines fly to Islip, New York?

Delta, JetBlue and United Airlines are the top three most popular airlines that fly to Islip, New York from Buffalo according to our data. Delta is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 5 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

When to book flights from Buffalo to Islip, New York

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to Islip, New York according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Buffalo to Islip, New York (BUF to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to Islip, New York

Best Price Found	$129
Fastest flight time	4h 20m
Direct flights	None

The best one-way flight to Islip, New York from Buffalo in the past 72 hours is $129. The best round-trip flight deal from Buffalo to Islip, New York found on momondo in the last 72 hours is $217.

The fastest flight from Buffalo to Islip, New York takes 4h 20m

There are no direct flights from Buffalo to Islip, New York. There are no popular flight routes from Buffalo to Islip, New York.

Search flight deals

Frequently asked questions about flying from Buffalo to Islip, New York

How far is Buffalo to Islip Long Island by plane?
There are 327.4 mi between Buffalo and Islip Long Island. In terms of flight time, this usually takes a little over 4h 20m.
When did momondo last update prices for flights from Buffalo Airport to Islip Long Island Airport?
Prices for flights from Buffalo Airport to Islip Long Island Airport were last updated today.
How many operators does momondo search for flights from Buffalo Airport to Islip Long Island Airport?
As of September 2026, there is 1 operator available to choose from for flights from Buffalo Airport to Islip Long Island Airport.
How old do you have to be to fly from Buffalo Airport to Islip Long Island Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Buffalo to Islip, New York?
momondo data reveals that the most frequently booked airline on the route from Buffalo to Islip, New York is Southwest, representing 100% of all bookings.

Best airlines flying from Buffalo to Islip, New York

Compare and see reviews for airlines that fly from Buffalo to Islip, New York with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $180	Free Cancellation	Rating 8.0 4,201 reviews		Search Southwest flights

Montauk

Riverhead

Southampton

Amagansett

Sag Harbor

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to Islip?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Buffalo to Islip. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Buffalo to Islip with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Buffalo to Islip flights to just show those with flexible booking policies.

How can momondo help me find flights from Buffalo to Islip?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from Buffalo.

I’m not ready to book a flight from Buffalo to Islip right now. Can momondo alert me if prices change?

Price alerts on flights to Islip from Buffalo are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Islip, New York trip

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Cheap flights from Buffalo to New York from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to New York departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Southwest flights from Buffalo to Islip, New York

Our best Southwest deals on Buffalo to Islip, New York flight tickets

Frontier flights from Buffalo to Islip, New York

Our best Frontier deals on Buffalo to Islip, New York flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Buffalo to Islip, New York that are best for you.

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How to get the cheapest flight ticket from Buffalo to Islip, New York

What is the cheapest airline that flies from Buffalo to Islip Long Island?

What airlines fly to Islip, New York?

When to book flights from Buffalo to Islip, New York

Cheap Buffalo to Islip, New York (BUF to ISP) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Buffalo to Islip, New York

Best airlines flying from Buffalo to Islip, New York

Compare and see reviews for airlines that fly from Buffalo to Islip, New York with momondo

Traveling to a place near New York?

Why use momondo?

An easier way to manage your Islip, New York trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing New York

Fly your favorite airline to New York

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to New York

List of cabin classes available on flights landing in New York. Availability may vary depending on flight origin and airline.

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