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Cheap flights from Buffalo to New York from $108

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 9/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Buffalo to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
9:33 pm - 9:53 am
BUF
-
ISP
12h 20m
1 stop
Frontier Logo
10:43 am - 9:07 pm
ISP
-
BUF
10h 24m
1 stop
$292Frontier
Thu, Aug 6 - Sat, Aug 8
Multiple Airlines Logo
9:29 pm - 9:53 am
BUF
-
ISP
12h 24m
1 stop
Multiple Airlines Logo
6:00 am - 7:43 pm
ISP
-
BUF
13h 43m
1 stop
$359Multiple Airlines
Thu, Jul 16 - Tue, Jul 21
Southwest Logo
2:50 pm - 11:45 pm
BUF
-
ISP
8h 55m
2 stops
Southwest Logo
2:55 pm - 8:00 pm
ISP
-
BUF
5h 05m
1 stop
$367Southwest
Thu, Jul 16 - Tue, Jul 21
Southwest Logo
5:55 pm - 11:40 pm
BUF
-
ISP
5h 45m
1 stop
Southwest Logo
6:00 am - 12:10 pm
ISP
-
BUF
6h 10m
1 stop
$369Southwest
Fri, Jul 10 - Tue, Jul 14
Frontier Logo
9:02 pm - 10:03 am
BUF
-
ISP
13h 01m
1 stop
Frontier Logo
10:48 am - 9:20 pm
ISP
-
BUF
10h 32m
1 stop
$377Frontier
Thu, Jul 2 - Sat, Jul 4
Southwest Logo
5:55 pm - 11:40 pm
BUF
-
ISP
5h 45m
1 stop
Southwest Logo
2:55 pm - 9:30 pm
ISP
-
BUF
6h 35m
2 stops
$382Southwest
Fri, Jul 10 - Tue, Jul 14
Southwest Logo
5:25 am - 2:50 pm
BUF
-
ISP
9h 25m
2 stops
Southwest Logo
6:00 am - 12:10 pm
ISP
-
BUF
6h 10m
1 stop
$384Southwest
Sat, Jul 11 - Tue, Jul 14
Frontier Logo
9:09 pm - 9:53 am
BUF
-
ISP
12h 44m
1 stop
Frontier Logo
10:57 am - 7:06 pm
ISP
-
BUF
8h 09m
1 stop
$387Frontier
Tue, Jul 7 - Wed, Jul 8
Southwest Logo
9:40 am - 2:50 pm
BUF
-
ISP
5h 10m
1 stop
Southwest Logo
4:40 pm - 8:00 pm
ISP
-
BUF
3h 20m
1 stop
$389Southwest
Sat, Jul 11 - Tue, Jul 14
Southwest Logo
2:50 pm - 11:45 pm
BUF
-
ISP
8h 55m
2 stops
Southwest Logo
6:00 am - 3:40 pm
ISP
-
BUF
9h 40m
2 stops
$395Southwest
Thu, Jul 16 - Tue, Jul 21

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Frontier flights from Buffalo to Islip, New York

Our best Frontier deals on Buffalo to Islip, New York flight tickets
Frontier
Aug 6
BUF9:33 pmBuffalo
12h 20m
1 stop
ISP9:53 amIslip Long Island
Aug 8
ISP10:43 amIslip Long Island
10h 24m
1 stop
BUF9:07 pmBuffalo
$292
Frontier
Jul 2
BUF9:02 pmBuffalo
13h 01m
1 stop
ISP10:03 amIslip Long Island
Jul 4
ISP10:48 amIslip Long Island
10h 32m
1 stop
BUF9:20 pmBuffalo
$377
Frontier
Jul 7
BUF9:09 pmBuffalo
12h 44m
1 stop
ISP9:53 amIslip Long Island
Jul 8
ISP10:57 amIslip Long Island
8h 09m
1 stop
BUF7:06 pmBuffalo
$387

Southwest flights from Buffalo to Islip, New York

Our best Southwest deals on Buffalo to Islip, New York flight tickets
Southwest
Jul 16
BUF2:50 pmBuffalo
8h 55m
2 stops
ISP11:45 pmIslip Long Island
Jul 21
ISP2:55 pmIslip Long Island
5h 05m
1 stop
BUF8:00 pmBuffalo
$367
Southwest
Jul 10
BUF5:55 pmBuffalo
5h 45m
1 stop
ISP11:40 pmIslip Long Island
Jul 14
ISP6:00 amIslip Long Island
6h 10m
1 stop
BUF12:10 pmBuffalo
$369
Southwest
Jul 10
BUF5:55 pmBuffalo
5h 45m
1 stop
ISP11:40 pmIslip Long Island
Jul 14
ISP2:55 pmIslip Long Island
6h 35m
2 stops
BUF9:30 pmBuffalo
$382

momondo Fare Finder

 
Customize your flight search to find flights from Buffalo to Islip, New York 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, momondo users made 832,500 searches. Data last updated June 29, 2026.
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

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 8/6

9:33 pm-9:53 am

1 stop12h 20m

Islip Long Island

Sat 8/8

10:43 am-9:07 pm

1 stop10h 24m

$292

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 7/16

9:29 pm-9:53 am

1 stop12h 24m

Islip Long Island

Tue 7/21

6:00 am-7:43 pm

1 stop13h 43m

$359

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 7/16

2:50 pm-11:45 pm

2 stops8h 55m

Islip Long Island

Tue 7/21

2:55 pm-8:00 pm

1 stop5h 05m

$367

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 7/10

5:55 pm-11:40 pm

1 stop5h 45m

Islip Long Island

Tue 7/14

6:00 am-12:10 pm

1 stop6h 10m

$369

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 7/2

9:02 pm-10:03 am

1 stop13h 01m

Islip Long Island

Sat 7/4

10:48 am-9:20 pm

1 stop10h 32m

$377

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 7/10

5:55 pm-11:40 pm

1 stop5h 45m

Islip Long Island

Tue 7/14

2:55 pm-9:30 pm

2 stops6h 35m

$382

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 7/11

5:25 am-2:50 pm

2 stops9h 25m

Islip Long Island

Tue 7/14

6:00 am-12:10 pm

1 stop6h 10m

$384

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Tue 7/7

9:09 pm-9:53 am

1 stop12h 44m

Islip Long Island

Wed 7/8

10:57 am-7:06 pm

1 stop8h 09m

$387
Quickest round-trip

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 7/11

9:40 am-2:50 pm

1 stop5h 10m

Islip Long Island

Tue 7/14

4:40 pm-8:00 pm

1 stop3h 20m

$389

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 7/16

2:50 pm-11:45 pm

2 stops8h 55m

Islip Long Island

Tue 7/21

6:00 am-3:40 pm

2 stops9h 40m

$395

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to New York from

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?

Southwest and Frontier 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

Fastest flight time

4h 15m

Direct flights

None
The fastest flight from Buffalo to Islip, New York takes 4h 15m
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 15m.

  • 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 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.

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Southampton
Sag Harbor
Amagansett

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.

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