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Cheap flights from Buffalo to New York from $169

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 8/9. 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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0 bags

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Find the cheapest flights from Buffalo to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
5:45 am - 12:05 pm
BUF
-
ISP
6h 20m
1 stop
Southwest Logo
5:30 am - 9:55 am
ISP
-
BUF
4h 25m
1 stop
$284Southwest
Sat, Aug 15 - Sat, Aug 22
Southwest Logo
10:50 am - 2:30 pm
BUF
-
ISP
3h 40m
1 stop
Southwest Logo
5:30 am - 4:45 pm
ISP
-
BUF
11h 15m
2 stops
$289Southwest
Sat, Aug 15 - Sat, Aug 22
Southwest Logo
7:50 am - 2:30 pm
BUF
-
ISP
6h 40m
2 stops
Southwest Logo
5:30 am - 4:45 pm
ISP
-
BUF
11h 15m
2 stops
$294Southwest
Sat, Aug 15 - Sat, Aug 22
Southwest Logo
5:45 am - 11:50 am
BUF
-
ISP
6h 05m
1 stop
Southwest Logo
4:30 pm - 11:20 pm
ISP
-
BUF
6h 50m
1 stop
$299Southwest
Mon, May 18 - Mon, May 18
Southwest Logo
5:45 am - 12:05 pm
BUF
-
ISP
6h 20m
1 stop
Southwest Logo
5:30 am - 9:55 am
ISP
-
BUF
4h 25m
1 stop
$306Southwest
Sat, Aug 15 - Sat, Aug 22
Southwest Logo
5:45 am - 12:05 pm
BUF
-
ISP
6h 20m
1 stop
Southwest Logo
5:30 am - 4:45 pm
ISP
-
BUF
11h 15m
2 stops
$311Southwest
Sat, Aug 15 - Sat, Aug 22
Southwest Logo
5:20 pm - 11:30 pm
BUF
-
ISP
6h 10m
1 stop
Southwest Logo
5:10 pm - 11:15 pm
ISP
-
BUF
6h 05m
1 stop
$321Southwest
Mon, May 25 - Fri, May 29
Southwest Logo
5:55 pm - 11:55 pm
BUF
-
ISP
6h 00m
1 stop
Southwest Logo
2:00 pm - 5:35 pm
ISP
-
BUF
3h 35m
1 stop
$324Southwest
Mon, Mar 16 - Fri, Mar 20
Southwest Logo
5:20 pm - 11:30 pm
BUF
-
ISP
6h 10m
1 stop
Southwest Logo
12:30 pm - 10:45 pm
ISP
-
BUF
10h 15m
2 stops
$326Southwest
Mon, May 25 - Fri, May 29
Southwest Logo
5:55 pm - 11:55 pm
BUF
-
ISP
6h 00m
1 stop
Southwest Logo
6:00 am - 3:15 pm
ISP
-
BUF
9h 15m
2 stops
$370Southwest
Mon, Mar 16 - Fri, Mar 20

Southwest flights from Buffalo to Islip, New York

Our best Southwest deals on Buffalo to Islip, New York flight tickets
Southwest
Aug 15
BUF5:45 amBuffalo
6h 20m
1 stop
ISP12:05 pmIslip Long Island
Aug 22
ISP5:30 amIslip Long Island
4h 25m
1 stop
BUF9:55 amBuffalo
$284
Southwest
Aug 15
BUF10:50 amBuffalo
3h 40m
1 stop
ISP2:30 pmIslip Long Island
Aug 22
ISP5:30 amIslip Long Island
11h 15m
2 stops
BUF4:45 pmBuffalo
$289
Southwest
Aug 15
BUF7:50 amBuffalo
6h 40m
2 stops
ISP2:30 pmIslip Long Island
Aug 22
ISP5:30 amIslip Long Island
11h 15m
2 stops
BUF4:45 pmBuffalo
$294

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 February 24, 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

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 8/15

5:45 am-12:05 pm

1 stop6h 20m

Islip Long Island

Sat 8/22

5:30 am-9:55 am

1 stop4h 25m

$284

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 8/15

10:50 am-2:30 pm

1 stop3h 40m

Islip Long Island

Sat 8/22

5:30 am-4:45 pm

2 stops11h 15m

$289

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 8/15

7:50 am-2:30 pm

2 stops6h 40m

Islip Long Island

Sat 8/22

5:30 am-4:45 pm

2 stops11h 15m

$294

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Mon 5/18

5:45 am-11:50 am

1 stop6h 05m

Islip Long Island

Mon 5/18

4:30 pm-11:20 pm

1 stop6h 50m

$299

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 8/15

5:45 am-12:05 pm

1 stop6h 20m

Islip Long Island

Sat 8/22

5:30 am-9:55 am

1 stop4h 25m

$306

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 8/15

5:45 am-12:05 pm

1 stop6h 20m

Islip Long Island

Sat 8/22

5:30 am-4:45 pm

2 stops11h 15m

$311

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Mon 5/25

5:20 pm-11:30 pm

1 stop6h 10m

Islip Long Island

Fri 5/29

5:10 pm-11:15 pm

1 stop6h 05m

$321

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Mon 3/16

5:55 pm-11:55 pm

1 stop6h 00m

Islip Long Island

Fri 3/20

2:00 pm-5:35 pm

1 stop3h 35m

$324

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Mon 5/25

5:20 pm-11:30 pm

1 stop6h 10m

Islip Long Island

Fri 5/29

12:30 pm-10:45 pm

2 stops10h 15m

$326

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Mon 3/16

5:55 pm-11:55 pm

1 stop6h 00m

Islip Long Island

Fri 3/20

6:00 am-3:15 pm

2 stops9h 15m

$370

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 is the most popular carrier 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 36% 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

5h 30m

Direct flights

None
The fastest flight from Buffalo to Islip, New York takes 5h 30m
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

  • 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 5h 30m.

  • 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
Sag Harbor
Southampton
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.

An easier way to manage your Islip, New York trip

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