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Cheap flights from Buffalo to New York from $104

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 4/15. 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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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.
Frontier Logo
8:08 pm - 9:13 am
BUF
-
ISP
13h 05m
2 stops
Frontier Logo
4:07 pm - 10:34 am
ISP
-
BUF
18h 27m
2 stops
$272Frontier
Thu, Apr 16 - Sun, Apr 19
Southwest Logo
3:55 pm - 11:55 pm
BUF
-
ISP
8h 00m
1 stop
Southwest Logo
5:55 pm - 12:10 am
ISP
-
BUF
6h 15m
1 stop
$319Southwest
Thu, Mar 26 - Mon, Mar 30
Southwest Logo
12:40 pm - 4:30 pm
BUF
-
ISP
3h 50m
1 stop
Southwest Logo
6:05 am - 11:50 am
ISP
-
BUF
5h 45m
1 stop
$320Southwest
Fri, Apr 24 - Sun, Apr 26
Southwest Logo
6:00 am - 10:15 am
BUF
-
ISP
4h 15m
1 stop
Southwest Logo
6:20 am - 12:25 pm
ISP
-
BUF
6h 05m
1 stop
$339Southwest
Wed, Aug 26 - Sun, Aug 30
Southwest Logo
6:00 am - 10:15 am
BUF
-
ISP
4h 15m
1 stop
Southwest Logo
12:45 pm - 10:15 pm
ISP
-
BUF
9h 30m
2 stops
$344Southwest
Wed, Aug 26 - Sun, Aug 30
Southwest Logo
12:35 pm - 9:05 pm
BUF
-
ISP
8h 30m
2 stops
Southwest Logo
12:45 pm - 10:15 pm
ISP
-
BUF
9h 30m
2 stops
$367Southwest
Wed, Aug 26 - Sun, Aug 30
Southwest Logo
3:55 pm - 11:55 pm
BUF
-
ISP
8h 00m
1 stop
Southwest Logo
2:00 pm - 11:15 pm
ISP
-
BUF
9h 15m
2 stops
$385Southwest
Thu, Mar 26 - Mon, Mar 30
Southwest Logo
5:50 pm - 11:35 pm
BUF
-
ISP
5h 45m
1 stop
Southwest Logo
12:20 pm - 4:00 pm
ISP
-
BUF
3h 40m
1 stop
$387Southwest
Sat, Mar 21 - Wed, Mar 25
Southwest Logo
5:55 pm - 11:55 pm
BUF
-
ISP
6h 00m
1 stop
Southwest Logo
5:55 pm - 12:10 am
ISP
-
BUF
6h 15m
1 stop
$389Southwest
Mon, Mar 23 - Fri, Mar 27
Southwest Logo
4:00 pm - 8:25 pm
BUF
-
ISP
4h 25m
1 stop
Southwest Logo
5:15 am - 2:15 pm
ISP
-
BUF
9h 00m
2 stops
$390Southwest
Fri, Apr 24 - Sun, Apr 26

Frontier flights from Buffalo to Islip, New York

Our best Frontier deals on Buffalo to Islip, New York flight tickets
Frontier
Apr 16
BUF8:08 pmBuffalo
13h 05m
2 stops
ISP9:13 amIslip Long Island
Apr 19
ISP4:07 pmIslip Long Island
18h 27m
2 stops
BUF10:34 amBuffalo
$272
Frontier
Apr 2
BUF1:02 pmBuffalo
21h 54m
2 stops
ISP10:56 amIslip Long Island
Apr 9
ISP5:30 amIslip Long Island
13h 08m
1 stop
BUF6:38 pmBuffalo
$529
Frontier
Apr 3
BUF9:00 pmBuffalo
13h 30m
1 stop
ISP10:30 amIslip Long Island
Apr 10
ISP7:34 pmIslip Long Island
15h 25m
1 stop
BUF10:59 amBuffalo
$655

Southwest flights from Buffalo to Islip, New York

Our best Southwest deals on Buffalo to Islip, New York flight tickets
Southwest
Mar 26
BUF3:55 pmBuffalo
8h 00m
1 stop
ISP11:55 pmIslip Long Island
Mar 30
ISP5:55 pmIslip Long Island
6h 15m
1 stop
BUF12:10 amBuffalo
$319
Southwest
Apr 24
BUF12:40 pmBuffalo
3h 50m
1 stop
ISP4:30 pmIslip Long Island
Apr 26
ISP6:05 amIslip Long Island
5h 45m
1 stop
BUF11:50 amBuffalo
$320
Southwest
Aug 26
BUF6:00 amBuffalo
4h 15m
1 stop
ISP10:15 amIslip Long Island
Aug 30
ISP6:20 amIslip Long Island
6h 05m
1 stop
BUF12:25 pmBuffalo
$339

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 March 9, 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 4/16

8:08 pm-9:13 am

2 stops13h 05m

Islip Long Island

Sun 4/19

4:07 pm-10:34 am

2 stops18h 27m

$272

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 3/26

3:55 pm-11:55 pm

1 stop8h 00m

Islip Long Island

Mon 3/30

5:55 pm-12:10 am

1 stop6h 15m

$319

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 4/24

12:40 pm-4:30 pm

1 stop3h 50m

Islip Long Island

Sun 4/26

6:05 am-11:50 am

1 stop5h 45m

$320

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Wed 8/26

6:00 am-10:15 am

1 stop4h 15m

Islip Long Island

Sun 8/30

6:20 am-12:25 pm

1 stop6h 05m

$339

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Wed 8/26

6:00 am-10:15 am

1 stop4h 15m

Islip Long Island

Sun 8/30

12:45 pm-10:15 pm

2 stops9h 30m

$344

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Wed 8/26

12:35 pm-9:05 pm

2 stops8h 30m

Islip Long Island

Sun 8/30

12:45 pm-10:15 pm

2 stops9h 30m

$367

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 3/26

3:55 pm-11:55 pm

1 stop8h 00m

Islip Long Island

Mon 3/30

2:00 pm-11:15 pm

2 stops9h 15m

$385
Quickest round-trip

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 3/21

5:50 pm-11:35 pm

1 stop5h 45m

Islip Long Island

Wed 3/25

12:20 pm-4:00 pm

1 stop3h 40m

$387

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Mon 3/23

5:55 pm-11:55 pm

1 stop6h 00m

Islip Long Island

Fri 3/27

5:55 pm-12:10 am

1 stop6h 15m

$389

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 4/24

4:00 pm-8:25 pm

1 stop4h 25m

Islip Long Island

Sun 4/26

5:15 am-2:15 pm

2 stops9h 00m

$390

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 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

4h 00m

Direct flights

None
The fastest flight from Buffalo to Islip, New York takes 4h 00m
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 4h 00m.

  • 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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