Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Buffalo to New York from $121

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 7/21. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Buffalo to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
6:25 am - 4:00 pm
BUF
-
ISP
9h 35m
2 stops
Southwest Logo
5:35 pm - 11:15 pm
ISP
-
BUF
5h 40m
1 stop
$297Southwest
Wed, Jul 15 - Sat, Jul 18
Southwest Logo
4:20 pm - 10:40 pm
BUF
-
ISP
6h 20m
1 stop
Southwest Logo
5:35 pm - 11:15 pm
ISP
-
BUF
5h 40m
1 stop
$300Southwest
Wed, Jul 15 - Sat, Jul 18
Southwest Logo
2:50 pm - 11:45 pm
BUF
-
ISP
8h 55m
2 stops
Southwest Logo
4:40 pm - 10:45 pm
ISP
-
BUF
6h 05m
1 stop
$313Southwest
Mon, Jul 20 - Tue, Jul 21
Southwest Logo
2:50 pm - 11:40 pm
BUF
-
ISP
8h 50m
1 stop
Southwest Logo
4:40 pm - 10:45 pm
ISP
-
BUF
6h 05m
1 stop
$323Southwest
Mon, Jul 20 - Tue, Jul 21
Southwest Logo
5:55 pm - 11:35 pm
BUF
-
ISP
5h 40m
1 stop
Southwest Logo
6:00 pm - 12:15 am
ISP
-
BUF
6h 15m
1 stop
$334Southwest
Fri, Jul 3 - Thu, Jul 9
Southwest Logo
2:50 pm - 11:45 pm
BUF
-
ISP
8h 55m
2 stops
Southwest Logo
5:50 pm - 12:15 am
ISP
-
BUF
6h 25m
1 stop
$335Southwest
Thu, Jul 9 - Mon, Jul 20
Frontier Logo
9:29 pm - 9:53 am
BUF
-
ISP
12h 24m
1 stop
Frontier Logo
10:57 am - 7:06 pm
ISP
-
BUF
8h 09m
1 stop
$339Frontier
Thu, Jul 9 - Mon, Jul 20
Southwest Logo
2:50 pm - 11:45 pm
BUF
-
ISP
8h 55m
2 stops
Southwest Logo
5:20 am - 2:15 pm
ISP
-
BUF
8h 55m
2 stops
$340Southwest
Thu, Jul 9 - Mon, Jul 20
Southwest Logo
5:45 am - 12:05 pm
BUF
-
ISP
6h 20m
1 stop
Southwest Logo
3:20 pm - 9:05 pm
ISP
-
BUF
5h 45m
1 stop
$344Southwest
Sat, Aug 8 - Wed, Aug 12
Southwest Logo
5:45 am - 12:05 pm
BUF
-
ISP
6h 20m
1 stop
Southwest Logo
12:55 pm - 9:45 pm
ISP
-
BUF
8h 50m
2 stops
$349Southwest
Sat, Aug 8 - Wed, Aug 12

Frontier flights from Buffalo to Islip, New York

Our best Frontier deals on Buffalo to Islip, New York flight tickets
Frontier
Jul 9
BUF9:29 pmBuffalo
12h 24m
1 stop
ISP9:53 amIslip Long Island
Jul 20
ISP10:57 amIslip Long Island
8h 09m
1 stop
BUF7:06 pmBuffalo
$339
Frontier
Jun 12
BUF7:57 pmBuffalo
25h 00m
1 stop
ISP8:57 pmIslip Long Island
Jun 14
ISP9:52 pmIslip Long Island
21h 20m
1 stop
BUF7:12 pmBuffalo
$383
Frontier
Jun 13
BUF12:29 pmBuffalo
32h 28m
2 stops
ISP8:57 pmIslip Long Island
Jun 20
ISP9:52 pmIslip Long Island
21h 20m
1 stop
BUF7:12 pmBuffalo
$667

Southwest flights from Buffalo to Islip, New York

Our best Southwest deals on Buffalo to Islip, New York flight tickets
Southwest
Oct 22
BUF12:25 pmBuffalo
4h 55m
1 stop
ISP5:20 pmIslip Long Island
Oct 26
ISP12:35 pmIslip Long Island
5h 50m
1 stop
BUF6:25 pmBuffalo
$274
Southwest
Oct 22
BUF12:25 pmBuffalo
9h 35m
2 stops
ISP10:00 pmIslip Long Island
Oct 26
ISP10:20 amIslip Long Island
5h 00m
1 stop
BUF3:20 pmBuffalo
$280
Southwest
Oct 22
BUF12:25 pmBuffalo
9h 35m
2 stops
ISP10:00 pmIslip Long Island
Oct 26
ISP6:00 amIslip Long Island
8h 30m
2 stops
BUF2:30 pmBuffalo
$285

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 8, 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

Wed 7/15

6:25 am-4:00 pm

2 stops9h 35m

Islip Long Island

Sat 7/18

5:35 pm-11:15 pm

1 stop5h 40m

$297

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Wed 7/15

4:20 pm-10:40 pm

1 stop6h 20m

Islip Long Island

Sat 7/18

5:35 pm-11:15 pm

1 stop5h 40m

$300

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Mon 7/20

2:50 pm-11:45 pm

2 stops8h 55m

Islip Long Island

Tue 7/21

4:40 pm-10:45 pm

1 stop6h 05m

$313

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Mon 7/20

2:50 pm-11:40 pm

1 stop8h 50m

Islip Long Island

Tue 7/21

4:40 pm-10:45 pm

1 stop6h 05m

$323
Quickest round-trip

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 7/3

5:55 pm-11:35 pm

1 stop5h 40m

Islip Long Island

Thu 7/9

6:00 pm-12:15 am

1 stop6h 15m

$334

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 7/9

2:50 pm-11:45 pm

2 stops8h 55m

Islip Long Island

Mon 7/20

5:50 pm-12:15 am

1 stop6h 25m

$335

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 7/9

9:29 pm-9:53 am

1 stop12h 24m

Islip Long Island

Mon 7/20

10:57 am-7:06 pm

1 stop8h 09m

$339

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 7/9

2:50 pm-11:45 pm

2 stops8h 55m

Islip Long Island

Mon 7/20

5:20 am-2:15 pm

2 stops8h 55m

$340

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 8/8

5:45 am-12:05 pm

1 stop6h 20m

Islip Long Island

Wed 8/12

3:20 pm-9:05 pm

1 stop5h 45m

$344

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 8/8

5:45 am-12:05 pm

1 stop6h 20m

Islip Long Island

Wed 8/12

12:55 pm-9:45 pm

2 stops8h 50m

$349

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

Frontier 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 34% 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 00m

Direct flights

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

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 5h 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 7/8
Wed 7/15
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States