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 5/21. 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
1:10 pm - 6:30 pm
BUF
-
ISP
5h 20m
1 stop
Southwest Logo
4:30 pm - 11:20 pm
ISP
-
BUF
6h 50m
1 stop
$218Southwest
Wed, May 6 - Thu, May 7
Southwest Logo
5:00 am - 12:05 pm
BUF
-
ISP
7h 05m
1 stop
Southwest Logo
5:30 am - 12:30 pm
ISP
-
BUF
7h 00m
1 stop
$223Southwest
Thu, Apr 30 - Sat, May 2
Southwest Logo
9:25 am - 6:30 pm
BUF
-
ISP
9h 05m
2 stops
Southwest Logo
4:30 pm - 11:20 pm
ISP
-
BUF
6h 50m
1 stop
$224Southwest
Wed, May 6 - Thu, May 7
Southwest Logo
4:00 pm - 8:25 pm
BUF
-
ISP
4h 25m
1 stop
Southwest Logo
5:30 am - 2:15 pm
ISP
-
BUF
8h 45m
2 stops
$228Southwest
Thu, Apr 30 - Sat, May 2
Southwest Logo
12:30 pm - 4:00 pm
BUF
-
ISP
3h 30m
1 stop
Southwest Logo
12:30 pm - 4:40 pm
ISP
-
BUF
4h 10m
1 stop
$244Southwest
Sat, May 2 - Mon, May 4
Southwest Logo
5:20 pm - 11:30 pm
BUF
-
ISP
6h 10m
1 stop
Southwest Logo
11:50 am - 9:25 pm
ISP
-
BUF
9h 35m
2 stops
$248Southwest
Fri, May 8 - Sun, May 10
Southwest Logo
2:00 pm - 10:40 pm
BUF
-
ISP
8h 40m
2 stops
Southwest Logo
8:35 am - 12:00 pm
ISP
-
BUF
3h 25m
1 stop
$249Southwest
Sat, May 2 - Mon, May 4
Frontier Logo
10:05 pm - 10:03 am
BUF
-
ISP
11h 58m
1 stop
Frontier Logo
10:48 am - 7:07 pm
ISP
-
BUF
8h 19m
1 stop
$270Frontier
Sat, Jul 18 - Wed, Jul 22
Southwest Logo
6:05 am - 11:50 am
BUF
-
ISP
5h 45m
1 stop
Southwest Logo
5:50 pm - 12:10 am
ISP
-
BUF
6h 20m
1 stop
$282Southwest
Mon, Jun 8 - Mon, Jun 15
Southwest Logo
2:00 pm - 10:40 pm
BUF
-
ISP
8h 40m
2 stops
Southwest Logo
12:30 pm - 10:45 pm
ISP
-
BUF
10h 15m
2 stops
$292Southwest
Sat, May 2 - Mon, May 4

Frontier flights from Buffalo to Islip, New York

Our best Frontier deals on Buffalo to Islip, New York flight tickets
Frontier
Jul 18
BUF10:05 pmBuffalo
11h 58m
1 stop
ISP10:03 amIslip Long Island
Jul 22
ISP10:48 amIslip Long Island
8h 19m
1 stop
BUF7:07 pmBuffalo
$270
Frontier
Jul 16
BUF8:57 pmBuffalo
13h 06m
1 stop
ISP10:03 amIslip Long Island
Jul 22
ISP10:48 amIslip Long Island
8h 19m
1 stop
BUF7:07 pmBuffalo
$335
Frontier
Apr 16
BUF11:19 amBuffalo
21h 54m
1 stop
ISP9:13 amIslip Long Island
Apr 20
ISP4:07 pmIslip Long Island
20h 35m
2 stops
BUF12:42 pmBuffalo
$388

Southwest flights from Buffalo to Islip, New York

Our best Southwest deals on Buffalo to Islip, New York flight tickets
Southwest
May 6
BUF1:10 pmBuffalo
5h 20m
1 stop
ISP6:30 pmIslip Long Island
May 7
ISP4:30 pmIslip Long Island
6h 50m
1 stop
BUF11:20 pmBuffalo
$218
Southwest
Apr 30
BUF5:00 amBuffalo
7h 05m
1 stop
ISP12:05 pmIslip Long Island
May 2
ISP5:30 amIslip Long Island
7h 00m
1 stop
BUF12:30 pmBuffalo
$223
Southwest
May 6
BUF9:25 amBuffalo
9h 05m
2 stops
ISP6:30 pmIslip Long Island
May 7
ISP4:30 pmIslip Long Island
6h 50m
1 stop
BUF11:20 pmBuffalo
$224

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 April 10, 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 5/6

1:10 pm-6:30 pm

1 stop5h 20m

Islip Long Island

Thu 5/7

4:30 pm-11:20 pm

1 stop6h 50m

$218

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 4/30

5:00 am-12:05 pm

1 stop7h 05m

Islip Long Island

Sat 5/2

5:30 am-12:30 pm

1 stop7h 00m

$223

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Wed 5/6

9:25 am-6:30 pm

2 stops9h 05m

Islip Long Island

Thu 5/7

4:30 pm-11:20 pm

1 stop6h 50m

$224

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 4/30

4:00 pm-8:25 pm

1 stop4h 25m

Islip Long Island

Sat 5/2

5:30 am-2:15 pm

2 stops8h 45m

$228
Quickest round-trip

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 5/2

12:30 pm-4:00 pm

1 stop3h 30m

Islip Long Island

Mon 5/4

12:30 pm-4:40 pm

1 stop4h 10m

$244

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 5/8

5:20 pm-11:30 pm

1 stop6h 10m

Islip Long Island

Sun 5/10

11:50 am-9:25 pm

2 stops9h 35m

$248

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 5/2

2:00 pm-10:40 pm

2 stops8h 40m

Islip Long Island

Mon 5/4

8:35 am-12:00 pm

1 stop3h 25m

$249

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 7/18

10:05 pm-10:03 am

1 stop11h 58m

Islip Long Island

Wed 7/22

10:48 am-7:07 pm

1 stop8h 19m

$270

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Mon 6/8

6:05 am-11:50 am

1 stop5h 45m

Islip Long Island

Mon 6/15

5:50 pm-12:10 am

1 stop6h 20m

$282

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Sat 5/2

2:00 pm-10:40 pm

2 stops8h 40m

Islip Long Island

Mon 5/4

12:30 pm-10:45 pm

2 stops10h 15m

$292

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 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 10m

Direct flights

None
The fastest flight from Buffalo to Islip, New York takes 5h 10m
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 10m.

  • 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
Sun 5/10
Sun 5/17
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States