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Cheap flights from Buffalo to New York from $144

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 11/26. 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

Southwest Logo
7:10 am - 12:25 pmBUF-ISP
5h 15m1 stop
Southwest Logo
11:55 am - 4:20 pmISP-BUF
4h 25m1 stop
$171Southwest
Find Deal
Tue, Oct 21 - Sat, Oct 25
Frontier Logo
7:41 pm - 10:40 amBUF-ISP
14h 59m1 stop
Frontier Logo
5:05 pm - 5:27 pmISP-BUF
24h 22m1 stop
$172Frontier
Find Deal
Thu, Oct 2 - Sat, Oct 4
Southwest Logo
11:10 am - 4:05 pmBUF-ISP
4h 55m1 stop
Southwest Logo
6:05 am - 3:15 pmISP-BUF
9h 10m2 stops
$176Southwest
Find Deal
Tue, Oct 21 - Sat, Oct 25
Frontier Logo
9:13 pm - 10:37 amBUF-ISP
13h 24m1 stop
Frontier Logo
9:47 pm - 8:18 pmISP-BUF
22h 31m1 stop
$180Frontier
Find Deal
Fri, Oct 17 - Sun, Oct 19
Frontier Logo
7:41 pm - 10:40 amBUF-ISP
14h 59m1 stop
Frontier Logo
5:05 pm - 11:22 amISP-BUF
18h 17m2 stops
$204Frontier
Find Deal
Thu, Oct 2 - Sat, Oct 4
Frontier Logo
6:22 pm - 10:40 amBUF-ISP
16h 18m2 stops
Frontier Logo
5:05 pm - 11:22 amISP-BUF
18h 17m2 stops
$236Frontier
Find Deal
Thu, Oct 2 - Sat, Oct 4
Southwest Logo
3:40 pm - 11:50 pmBUF-ISP
8h 10m1 stop
Southwest Logo
5:50 pm - 12:05 amISP-BUF
6h 15m1 stop
$258Southwest
Find Deal
Fri, Nov 28 - Mon, Dec 1
Frontier Logo
8:19 pm - 9:04 amBUF-ISP
12h 45m2 stops
Frontier Logo
9:47 pm - 11:19 amISP-BUF
13h 32m2 stops
$285Frontier
Find Deal
Thu, Oct 23 - Sun, Oct 26
Southwest Logo
5:45 pm - 11:45 pmBUF-ISP
6h 00m1 stop
Southwest Logo
5:35 pm - 8:45 pmISP-BUF
3h 10m1 stop
$301Southwest
Find Deal
Fri, Oct 3 - Mon, Oct 6
JetBlue Logo
8:00 am - 3:23 pmBUF-ISP
7h 23m1 stop
JetBlue Logo
11:35 am - 10:20 pmISP-BUF
10h 45m1 stop
$456JetBlue
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Tue, Sep 30 - Sat, Oct 4

Southwest flights from Buffalo to Islip

Our best Southwest deals on Buffalo to Islip flight tickets
Southwest
Oct 21
BUF7:10 amBuffalo
5h 15m
1 stop
ISP12:25 pmIslip Long Island
Oct 25
ISP11:55 amIslip Long Island
4h 25m
1 stop
BUF4:20 pmBuffalo
$171
Find similar
Southwest
Oct 21
BUF11:10 amBuffalo
4h 55m
1 stop
ISP4:05 pmIslip Long Island
Oct 25
ISP6:05 amIslip Long Island
9h 10m
2 stops
BUF3:15 pmBuffalo
$176
Find similar
Southwest
Nov 28
BUF3:40 pmBuffalo
8h 10m
1 stop
ISP11:50 pmIslip Long Island
Dec 1
ISP5:50 pmIslip Long Island
6h 15m
1 stop
BUF12:05 amBuffalo
$258
Find similar

Frontier flights from Buffalo to Islip

Our best Frontier deals on Buffalo to Islip flight tickets
Frontier
Oct 2
BUF7:41 pmBuffalo
14h 59m
1 stop
ISP10:40 amIslip Long Island
Oct 4
ISP5:05 pmIslip Long Island
24h 22m
1 stop
BUF5:27 pmBuffalo
$172
Find similar
Frontier
Oct 17
BUF9:13 pmBuffalo
13h 24m
1 stop
ISP10:37 amIslip Long Island
Oct 19
ISP9:47 pmIslip Long Island
22h 31m
1 stop
BUF8:18 pmBuffalo
$180
Find similar
Frontier
Oct 2
BUF7:41 pmBuffalo
14h 59m
1 stop
ISP10:40 amIslip Long Island
Oct 4
ISP5:05 pmIslip Long Island
18h 17m
2 stops
BUF11:22 amBuffalo
$204
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Buffalo to Islip 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 September 17, 2025.
Use the filters below to find and compare flights from Buffalo to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Tue 10/21

7:10 am-12:25 pm

1 stop5h 15m

Islip Long Island

Sat 10/25

11:55 am-4:20 pm

1 stop4h 25m

$171

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 10/2

7:41 pm-10:40 am

1 stop14h 59m

Islip Long Island

Sat 10/4

5:05 pm-5:27 pm

1 stop24h 22m

$172

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Tue 10/21

11:10 am-4:05 pm

1 stop4h 55m

Islip Long Island

Sat 10/25

6:05 am-3:15 pm

2 stops9h 10m

$176

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 10/17

9:13 pm-10:37 am

1 stop13h 24m

Islip Long Island

Sun 10/19

9:47 pm-8:18 pm

1 stop22h 31m

$180

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 10/2

7:41 pm-10:40 am

1 stop14h 59m

Islip Long Island

Sat 10/4

5:05 pm-11:22 am

2 stops18h 17m

$204

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 10/2

6:22 pm-10:40 am

2 stops16h 18m

Islip Long Island

Sat 10/4

5:05 pm-11:22 am

2 stops18h 17m

$236

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 11/28

3:40 pm-11:50 pm

1 stop8h 10m

Islip Long Island

Mon 12/1

5:50 pm-12:05 am

1 stop6h 15m

$258

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Thu 10/23

8:19 pm-9:04 am

2 stops12h 45m

Islip Long Island

Sun 10/26

9:47 pm-11:19 am

2 stops13h 32m

$285

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Fri 10/3

5:45 pm-11:45 pm

1 stop6h 00m

Islip Long Island

Mon 10/6

5:35 pm-8:45 pm

1 stop3h 10m

$301

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

Tue 9/30

8:00 am-3:23 pm

1 stop7h 23m

Islip Long Island

Sat 10/4

11:35 am-10:20 pm

1 stop10h 45m

$456

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Buffalo to Islip

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?

Flying to Islip 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 in the morning are often more expensive with an average ticket price of $346.

When to book flights from Buffalo to Islip

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to Islip according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Buffalo to Islip (BUF to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to Islip

Direct flights

None
There are no direct flights from Buffalo to Islip. There are no popular flight routes from Buffalo to Islip.
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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 55m.

  • 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?

Best airlines flying from Buffalo to Islip

Compare and see reviews for airlines that fly from Buffalo to Islip with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $199Free CancellationRating
8.0
4,242 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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