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Cheap flights from Buffalo to New York from $166

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 5/17. 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
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
12:35 pm - 4:25 pm
BUF
-
ISP
3h 50m
1 stop
Southwest Logo
6:00 am - 12:30 pm
ISP
-
BUF
6h 30m
1 stop
$307Southwest
Mon, Feb 23 - Wed, Feb 25
Frontier Logo
1:39 pm - 11:06 am
BUF
-
ISP
21h 27m
2 stops
Frontier Logo
3:34 pm - 6:21 pm
ISP
-
BUF
26h 47m
1 stop
$309Frontier
Fri, Feb 27 - Mon, Mar 2
Southwest Logo
12:35 pm - 4:25 pm
BUF
-
ISP
3h 50m
1 stop
Southwest Logo
6:00 am - 3:10 pm
ISP
-
BUF
9h 10m
2 stops
$312Southwest
Mon, Feb 23 - Wed, Feb 25
Southwest Logo
5:50 am - 4:25 pm
BUF
-
ISP
10h 35m
2 stops
Southwest Logo
6:00 am - 4:15 pm
ISP
-
BUF
10h 15m
2 stops
$317Southwest
Mon, Feb 23 - Wed, Feb 25
Southwest Logo
6:10 am - 11:45 am
BUF
-
ISP
5h 35m
1 stop
Southwest Logo
9:00 am - 2:20 pm
ISP
-
BUF
5h 20m
1 stop
$334Southwest
Sun, Jun 14 - Wed, Jun 17
Southwest Logo
2:50 pm - 11:30 pm
BUF
-
ISP
8h 40m
2 stops
Southwest Logo
11:50 am - 9:15 pm
ISP
-
BUF
9h 25m
2 stops
$347Southwest
Fri, Feb 27 - Mon, Mar 2
Southwest Logo
6:10 am - 11:45 am
BUF
-
ISP
5h 35m
1 stop
Southwest Logo
12:25 pm - 9:25 pm
ISP
-
BUF
9h 00m
2 stops
$354Southwest
Sun, Jun 14 - Wed, Jun 17
Southwest Logo
8:40 am - 11:55 am
BUF
-
ISP
3h 15m
1 stop
Southwest Logo
11:50 am - 6:40 pm
ISP
-
BUF
6h 50m
1 stop
$374Southwest
Thu, Feb 19 - Mon, Feb 23
Southwest Logo
5:50 am - 4:25 pm
BUF
-
ISP
10h 35m
2 stops
Southwest Logo
5:55 am - 2:55 pm
ISP
-
BUF
9h 00m
1 stop
$380Southwest
Thu, Feb 19 - Mon, Feb 23
Southwest Logo
12:35 pm - 4:25 pm
BUF
-
ISP
3h 50m
1 stop
Southwest Logo
5:30 am - 11:45 am
ISP
-
BUF
6h 15m
1 stop
$389Southwest
Tue, Feb 17 - Sat, Feb 21

Southwest flights from Buffalo to Islip, New York

Our best Southwest deals on Buffalo to Islip, New York flight tickets
Southwest
Feb 23
BUF12:35 pmBuffalo
3h 50m
1 stop
ISP4:25 pmIslip Long Island
Feb 25
ISP6:00 amIslip Long Island
6h 30m
1 stop
BUF12:30 pmBuffalo
$307
Southwest
Feb 23
BUF12:35 pmBuffalo
3h 50m
1 stop
ISP4:25 pmIslip Long Island
Feb 25
ISP6:00 amIslip Long Island
9h 10m
2 stops
BUF3:10 pmBuffalo
$312
Southwest
Feb 23
BUF5:50 amBuffalo
10h 35m
2 stops
ISP4:25 pmIslip Long Island
Feb 25
ISP6:00 amIslip Long Island
10h 15m
2 stops
BUF4:15 pmBuffalo
$317

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 5, 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

Mon 2/23

12:35 pm-4:25 pm

1 stop3h 50m

Islip Long Island

Wed 2/25

6:00 am-12:30 pm

1 stop6h 30m

$307

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 2/27

1:39 pm-11:06 am

2 stops21h 27m

Islip Long Island

Mon 3/2

3:34 pm-6:21 pm

1 stop26h 47m

$309

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Mon 2/23

12:35 pm-4:25 pm

1 stop3h 50m

Islip Long Island

Wed 2/25

6:00 am-3:10 pm

2 stops9h 10m

$312

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Mon 2/23

5:50 am-4:25 pm

2 stops10h 35m

Islip Long Island

Wed 2/25

6:00 am-4:15 pm

2 stops10h 15m

$317

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sun 6/14

6:10 am-11:45 am

1 stop5h 35m

Islip Long Island

Wed 6/17

9:00 am-2:20 pm

1 stop5h 20m

$334

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 2/27

2:50 pm-11:30 pm

2 stops8h 40m

Islip Long Island

Mon 3/2

11:50 am-9:15 pm

2 stops9h 25m

$347

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sun 6/14

6:10 am-11:45 am

1 stop5h 35m

Islip Long Island

Wed 6/17

12:25 pm-9:25 pm

2 stops9h 00m

$354

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 2/19

8:40 am-11:55 am

1 stop3h 15m

Islip Long Island

Mon 2/23

11:50 am-6:40 pm

1 stop6h 50m

$374

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 2/19

5:50 am-4:25 pm

2 stops10h 35m

Islip Long Island

Mon 2/23

5:55 am-2:55 pm

1 stop9h 00m

$380

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Tue 2/17

12:35 pm-4:25 pm

1 stop3h 50m

Islip Long Island

Sat 2/21

5:30 am-11:45 am

1 stop6h 15m

$389

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

3h 15m

Direct flights

None
The fastest flight from Buffalo to Islip, New York takes 3h 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

  • 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 3h 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 many operators does momondo search 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?

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
SouthwestPriceFrom $199Free CancellationRating
8.0
4,274 reviews
Search Southwest flights

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.

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