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Cheap flights from Buffalo to New York from $83

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 12/15. 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.
Southwest Logo
11:10 am - 3:25 pmBUF-ISP
4h 15m1 stop
Southwest Logo
4:05 pm - 10:30 pmISP-BUF
6h 25m1 stop
$245Southwest
Find Deal
Sat, Jan 17 - Mon, Jan 19
Southwest Logo
10:40 am - 9:50 pmBUF-ISP
11h 10m2 stops
Southwest Logo
4:05 pm - 10:30 pmISP-BUF
6h 25m1 stop
$314Southwest
Find Deal
Sat, Jan 17 - Mon, Jan 19
Southwest Logo
5:20 pm - 11:30 pmBUF-ISP
6h 10m1 stop
Southwest Logo
5:35 pm - 11:40 pmISP-BUF
6h 05m1 stop
$339Southwest
Find Deal
Thu, Feb 12 - Mon, Feb 16
Southwest Logo
5:20 pm - 11:30 pmBUF-ISP
6h 10m1 stop
Southwest Logo
1:10 pm - 11:55 pmISP-BUF
10h 45m2 stops
$374Southwest
Find Deal
Thu, Feb 12 - Mon, Feb 16
Southwest Logo
10:40 am - 9:50 pmBUF-ISP
11h 10m2 stops
Southwest Logo
11:50 am - 9:15 pmISP-BUF
9h 25m2 stops
$387Southwest
Find Deal
Sat, Jan 17 - Mon, Jan 19
Frontier Logo
9:42 am - 7:40 pmBUF-ISP
9h 58m1 stop
Frontier Logo
2:04 pm - 9:08 pmISP-BUF
7h 04m1 stop
$462Frontier
Find Deal
Fri, Dec 19 - Mon, Dec 22
Southwest Logo
7:15 am - 5:00 pmBUF-ISP
9h 45m2 stops
Southwest Logo
1:10 pm - 11:55 pmISP-BUF
10h 45m2 stops
$463Southwest
Find Deal
Thu, Feb 12 - Mon, Feb 16
Frontier Logo
9:42 am - 7:40 pmBUF-ISP
9h 58m1 stop
Frontier Logo
2:04 pm - 9:08 pmISP-BUF
7h 04m1 stop
$487Frontier
Find Deal
Fri, Dec 19 - Mon, Dec 22
Frontier Logo
10:43 am - 7:40 pmBUF-ISP
8h 57m1 stop
Frontier Logo
2:04 pm - 9:08 pmISP-BUF
7h 04m1 stop
$800Frontier
Find Deal
Mon, Dec 22 - Mon, Jan 5
JetBlue Logo
6:45 am - 7:50 pmBUF-ISP
13h 05m1 stop
JetBlue Logo
10:46 am - 10:41 pmISP-BUF
11h 55m1 stop
$813JetBlue
Find Deal
Wed, Dec 17 - Sun, Dec 21

Southwest flights from Buffalo to Islip, New York

Our best Southwest deals on Buffalo to Islip, New York flight tickets
Southwest
Jan 17
BUF11:10 amBuffalo
4h 15m
1 stop
ISP3:25 pmIslip Long Island
Jan 19
ISP4:05 pmIslip Long Island
6h 25m
1 stop
BUF10:30 pmBuffalo
$245
Find similar
Southwest
Jan 17
BUF10:40 amBuffalo
11h 10m
2 stops
ISP9:50 pmIslip Long Island
Jan 19
ISP4:05 pmIslip Long Island
6h 25m
1 stop
BUF10:30 pmBuffalo
$314
Find similar
Southwest
Feb 12
BUF5:20 pmBuffalo
6h 10m
1 stop
ISP11:30 pmIslip Long Island
Feb 16
ISP5:35 pmIslip Long Island
6h 05m
1 stop
BUF11:40 pmBuffalo
$339
Find similar

Frontier flights from Buffalo to Islip, New York

Our best Frontier deals on Buffalo to Islip, New York flight tickets
Frontier
Dec 19
BUF9:42 amBuffalo
9h 58m
1 stop
ISP7:40 pmIslip Long Island
Dec 22
ISP2:04 pmIslip Long Island
7h 04m
1 stop
BUF9:08 pmBuffalo
$462
Find similar
Frontier
Dec 19
BUF9:42 amBuffalo
9h 58m
1 stop
ISP7:40 pmIslip Long Island
Dec 22
ISP2:04 pmIslip Long Island
7h 04m
1 stop
BUF9:08 pmBuffalo
$487
Find similar
Frontier
Dec 5
BUF12:37 pmBuffalo
20h 36m
1 stop
ISP9:13 amIslip Long Island
Dec 7
ISP11:15 amIslip Long Island
27h 00m
1 stop
BUF2:15 pmBuffalo
$608
Find similar

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 December 3, 2025.
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 1/17

11:10 am-3:25 pm

1 stop4h 15m

Islip Long Island

Mon 1/19

4:05 pm-10:30 pm

1 stop6h 25m

$245

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 1/17

10:40 am-9:50 pm

2 stops11h 10m

Islip Long Island

Mon 1/19

4:05 pm-10:30 pm

1 stop6h 25m

$314

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 2/12

5:20 pm-11:30 pm

1 stop6h 10m

Islip Long Island

Mon 2/16

5:35 pm-11:40 pm

1 stop6h 05m

$339

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 2/12

5:20 pm-11:30 pm

1 stop6h 10m

Islip Long Island

Mon 2/16

1:10 pm-11:55 pm

2 stops10h 45m

$374

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 1/17

10:40 am-9:50 pm

2 stops11h 10m

Islip Long Island

Mon 1/19

11:50 am-9:15 pm

2 stops9h 25m

$387

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 12/19

9:42 am-7:40 pm

1 stop9h 58m

Islip Long Island

Mon 12/22

2:04 pm-9:08 pm

1 stop7h 04m

$462

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 2/12

7:15 am-5:00 pm

2 stops9h 45m

Islip Long Island

Mon 2/16

1:10 pm-11:55 pm

2 stops10h 45m

$463

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 12/19

9:42 am-7:40 pm

1 stop9h 58m

Islip Long Island

Mon 12/22

2:04 pm-9:08 pm

1 stop7h 04m

$487

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Mon 12/22

10:43 am-7:40 pm

1 stop8h 57m

Islip Long Island

Mon 1/5

2:04 pm-9:08 pm

1 stop7h 04m

$800

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Wed 12/17

6:45 am-7:50 pm

1 stop13h 05m

Islip Long Island

Sun 12/21

10:46 am-10:41 pm

1 stop11h 55m

$813

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 time of day to depart on your flight to Islip, New York?

Flying to Islip, New York from Buffalo in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $276 when looking at flights departing in the afternoon. Flights to Islip, New York are more costly in the morning, with an average ticket price of $346. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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.
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  • 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 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
4,253 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.

An easier way to manage your Islip, New York trip

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