Which airports can I use when flying from Islip to Buffalo?

Flights from Islip to Buffalo usually depart from Islip Long Island (ISP) and arrive at Buffalo (BUF).

What cabin classes can I book on flights from Islip to Buffalo?

Only Economy Class is available on flights from Islip to Buffalo.

Which airports do connecting flights from Islip to Buffalo pass through?

Connecting flights from Islip to Buffalo most commonly pass through: • Baltimore/Washington (BWI) - 90% of one-stop connections • Orlando (MCO) - 10% of one-stop connections Together, these airports account for 100% of one-stop bookings on this route.

Can I save money by using flexible dates for flights from Islip to Buffalo?

On the Islip to Buffalo route, being flexible with your departure day can save you up to 65%. Saturday is the cheapest day at $175 round-trip on average, while Thursday is the most expensive at $493: a $318 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

How long is a flight from Islip to Buffalo?

A nonstop flight from Islip to Buffalo takes 0h 00m, covering 325 miles.

Do I need a passport to fly from Islip to Buffalo?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Have flight prices from Islip to Buffalo changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $201 to $1,040. That means the highest observed fare was about 5x higher than the lowest one.

How are flight prices from Islip to Buffalo looking right now?

One-way fares from Islip to Buffalo are currently in line with typical prices for this route. Average one-way fares are about $211.

How much time can I save by choosing a different layover airport from Islip to Buffalo?

Flying via Baltimore/Washington (BWI) gives the shortest average 1-stop total travel time at 4h 20m, compared with 23h 03m via Orlando (MCO).

What car rental options are available at Buffalo Airport (BUF)?

Buffalo Airport (BUF) hosts 5 major car rental companies, with daily rates starting from around $19 for economy cars. Top options include: · Dollar · Budget · Hertz · Alamo · Thrifty

How much should I expect to pay for a Islip to Buffalo flight?

Round-trip flights from Islip to Buffalo range from $348 to $376, with an average of $361 over the past 12 months. Anything below $348 counts as a good deal.

What is the cheapest airline to fly from Islip to Buffalo?

Southwest ($201) and Frontier ($276) are the cheapest airlines to fly round-trip from Islip to Buffalo according to KAYAK data over the last 5 days.

What is the most popular layover airport when flying from Islip to Buffalo?

Baltimore/Washington (BWI) is the most popular layover for the Islip to Buffalo route. 90% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via BWI.

What is the cheapest layover airport when flying from Islip to Buffalo?

Flights via Orlando (MCO) offer the most affordable fares, with an average round-trip price of $175. Based on KAYAK data over the past 3 months.

When flying from Islip to Buffalo which airport offers the shortest layover?

Baltimore/Washington (BWI) had the shortest average connection time for Islip to Buffalo layovers at 185 minutes over the past 3 months.

$142 CHEAP FLIGHTS from Islip to Buffalo (ISP - BUF)

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$201

Typical prices: $348-$376

Southwest

Wed 9/19Wed 9/26

ISP - BUF • 1 stop

Cheapest one-way

$142

Typical prices: $188-$289

Frontier

Wed 9/26

ISP - BUF • 1 stop

Nonstop flights

Not available

There are currently no direct flights between Islip and Buffalo. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

December

Cheapest • 52% price drop

July

Most popular

Good to know

Top layover airports

Orlando (MCO)

Cheapest • Avg $175 (round-trip)

Baltimore/Washington (BWI)

Shortest trip • 4h 20m (one-way)

Insights

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Buffalo!

Flight Deals

Cheap Flights from Islip to Buffalo (ISP-BUF)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Islip to Buffalo

Sat, Sep 19 - Sat, Sep 26

5:30 am - 9:55 amISP Islip Long Island-BUF Buffalo

4h 25m1 stop Baltimore/Washington

5:45 am - 12:05 pmBUF Buffalo-ISP Islip Long Island

6h 20m1 stop Baltimore/Washington

$201Southwest

Mon, Sep 21 - Fri, Sep 25

6:10 am - 11:10 amISP Islip Long Island-BUF Buffalo

5h 00m1 stop Baltimore/Washington

1:40 pm - 10:10 pmBUF Buffalo-ISP Islip Long Island

8h 30m2 stops Tampa Baltimore/Washington

$216Southwest

Wed, Oct 21 - Thu, Oct 22

6:05 am - 12:00 pmISP Islip Long Island-BUF Buffalo

5h 55m1 stop Baltimore/Washington

5:45 pm - 11:35 pmBUF Buffalo-ISP Islip Long Island

5h 50m1 stop Baltimore/Washington

$261Southwest

Fri, Oct 16 - Mon, Oct 19

3:10 pm - 6:40 pmISP Islip Long Island-BUF Buffalo

3h 30m1 stop Baltimore/Washington

9:40 am - 2:30 pmBUF Buffalo-ISP Islip Long Island

4h 50m1 stop Baltimore/Washington

$271Southwest

Sat, Sep 5 - Sun, Sep 6

10:57 am - 6:09 pmISP Islip Long Island-BUF Buffalo

7h 12m1 stop Orlando

9:29 pm - 9:53 amBUF Buffalo-ISP Islip Long Island

12h 24m1 stop Orlando

$276Frontier

Sat, Sep 12 - Mon, Sep 14

11:55 am - 5:40 pmISP Islip Long Island-BUF Buffalo

5h 45m1 stop Baltimore/Washington

1:40 pm - 10:10 pmBUF Buffalo-ISP Islip Long Island

8h 30m2 stops Tampa Baltimore/Washington

$281Southwest

Thu, Oct 22 - Sun, Oct 25

5:40 pm - 11:40 pmISP Islip Long Island-BUF Buffalo

6h 00m1 stop Baltimore/Washington

5:50 am - 10:20 amBUF Buffalo-ISP Islip Long Island

4h 30m1 stop Baltimore/Washington

$284Southwest

Sat, Oct 24 - Sun, Oct 25

6:15 am - 1:00 pmISP Islip Long Island-BUF Buffalo

6h 45m2 stops Baltimore/Washington Nashville Intl

5:50 am - 10:20 amBUF Buffalo-ISP Islip Long Island

4h 30m1 stop Baltimore/Washington

$289Southwest

Mon, Sep 21 - Fri, Sep 25

6:10 am - 11:10 amISP Islip Long Island-BUF Buffalo

5h 00m1 stop Baltimore/Washington

5:40 am - 9:40 amBUF Buffalo-ISP Islip Long Island

4h 00m1 stop Baltimore/Washington

$294Southwest

Sat, Sep 5 - Sun, Sep 6

10:57 am - 6:09 pmISP Islip Long Island-BUF Buffalo

7h 12m1 stop Orlando

9:29 pm - 9:53 amBUF Buffalo-ISP Islip Long Island

12h 24m1 stop Orlando

$296Frontier

Recent last minute flight deals from Islip to Buffalo

Fri, Aug 28 - Sun, Aug 30

7:09 pm - 6:09 pmISP Islip Long Island-BUF Buffalo

23h 00m1 stop Orlando

9:29 pm - 9:53 amBUF Buffalo-ISP Islip Long Island

12h 24m1 stop Orlando

$350Frontier

Wed, Aug 26 - Thu, Aug 27

10:57 am - 6:09 pmISP Islip Long Island-BUF Buffalo

7h 12m1 stop Orlando

9:29 pm - 9:53 amBUF Buffalo-ISP Islip Long Island

12h 24m1 stop Orlando

$360Frontier

Thu, Aug 27 - Thu, Sep 3

7:09 pm - 6:09 pmISP Islip Long Island-BUF Buffalo

23h 00m1 stop Orlando

9:29 pm - 9:53 amBUF Buffalo-ISP Islip Long Island

12h 24m1 stop Orlando

$537Frontier

Fri, Aug 28 - Tue, Sep 1

10:57 am - 6:09 pmISP Islip Long Island-BUF Buffalo

7h 12m1 stop Orlando

9:29 pm - 9:53 amBUF Buffalo-ISP Islip Long Island

12h 24m1 stop Orlando

$580Frontier

Thu, Aug 27 - Mon, Aug 31

4:05 pm - 9:50 pmISP Islip Long Island-BUF Buffalo

5h 45m1 stop Baltimore/Washington

5:40 am - 9:40 amBUF Buffalo-ISP Islip Long Island

4h 00m1 stop Baltimore/Washington

$681Southwest

Thu, Aug 27 - Thu, Sep 3

6:10 am - 3:15 pmISP Islip Long Island-BUF Buffalo

9h 05m2 stops Baltimore/Washington Chicago Midway

6:00 am - 11:55 amBUF Buffalo-ISP Islip Long Island

5h 55m1 stop Orlando

$686Southwest

Thu, Aug 27 - Thu, Sep 3

12:35 pm - 10:15 pmISP Islip Long Island-BUF Buffalo

9h 40m2 stops Baltimore/Washington Tampa

6:30 am - 4:25 pmBUF Buffalo-ISP Islip Long Island

9h 55m2 stops Tampa Baltimore/Washington

$691Southwest

Thu, Aug 27 - Sat, Aug 29

12:35 pm - 6:25 pmISP Islip Long Island-BUF Buffalo

5h 50m1 stop Baltimore/Washington

8:50 am - 12:05 pmBUF Buffalo-ISP Islip Long Island

3h 15m1 stop Baltimore/Washington

$743Southwest

Thu, Aug 27 - Sat, Aug 29

4:05 pm - 9:50 pmISP Islip Long Island-BUF Buffalo

5h 45m1 stop Baltimore/Washington

6:05 am - 2:30 pmBUF Buffalo-ISP Islip Long Island

8h 25m2 stops Orlando Baltimore/Washington

$748Southwest

Thu, Aug 27 - Sat, Aug 29

12:35 pm - 10:15 pmISP Islip Long Island-BUF Buffalo

9h 40m2 stops Baltimore/Washington Tampa

10:40 am - 8:45 pmBUF Buffalo-ISP Islip Long Island

10h 05m2 stops Orlando Baltimore/Washington

$753Southwest

Booking Insights

Price, demand and travel trends for Islip to Buffalo flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Islip to Buffalo with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Islip to Buffalo?

Round-trip flights from Islip to Buffalo start at $201. Prices are below average for this route right now, with typical round-trip fares ranging from $348 to $376. The lowest price found in the past 5 days was $201 on Southwest.

Find deals

Low season	February
High season	July
Cheapest flight	$142

Most popular time to fly with an average 4% increase in price.

Flight from Islip to Buffalo

When to book flights from Islip to Buffalo

Are your dates flexible? Find out the best times to travel from Islip to Buffalo based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Islip to Buffalo?
Flights from Islip to Buffalo usually depart from Islip Long Island (ISP) and arrive at Buffalo (BUF).
What cabin classes can I book on flights from Islip to Buffalo?
Only Economy Class is available on flights from Islip to Buffalo.
Which airports do connecting flights from Islip to Buffalo pass through?
Connecting flights from Islip to Buffalo most commonly pass through:

• Baltimore/Washington (BWI) - 90% of one-stop connections
• Orlando (MCO) - 10% of one-stop connections
Together, these airports account for 100% of one-stop bookings on this route.
Can I save money by using flexible dates for flights from Islip to Buffalo?
On the Islip to Buffalo route, being flexible with your departure day can save you up to 65%. Saturday is the cheapest day at $175 round-trip on average, while Thursday is the most expensive at $493: a $318 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
How long is a flight from Islip to Buffalo?
A nonstop flight from Islip to Buffalo takes 0h 00m, covering 325 miles.
Do I need a passport to fly from Islip to Buffalo?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from Islip to Buffalo changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $201 to $1,040. That means the highest observed fare was about 5x higher than the lowest one.
How are flight prices from Islip to Buffalo looking right now?
One-way fares from Islip to Buffalo are currently in line with typical prices for this route. Average one-way fares are about $211.
How much time can I save by choosing a different layover airport from Islip to Buffalo?
Flying via Baltimore/Washington (BWI) gives the shortest average 1-stop total travel time at 4h 20m, compared with 23h 03m via Orlando (MCO).
What car rental options are available at Buffalo Airport (BUF)?
Buffalo Airport (BUF) hosts 5 major car rental companies, with daily rates starting from around $19 for economy cars. Top options include:
· Dollar
· Budget
· Hertz
· Alamo
· Thrifty
How much should I expect to pay for a Islip to Buffalo flight?
Round-trip flights from Islip to Buffalo range from $348 to $376, with an average of $361 over the past 12 months. Anything below $348 counts as a good deal.

If your dates can be flexible, aim for a Saturday departure instead of Thursday. On this route, Saturday flights average $175 - about $318 less than Thursday (65% savings) based on the last 12 months.
If you can choose when to travel, plan your Islip to Buffalo trip for December. Fares historically average $175 round-trip in that month - typically $318 less than the most expensive month, which is October (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Buffalo Airport.
- Aloft Buffalo Airport
- Comfort Inn and Suites Buffalo Airport
- TownePlace Suites by Marriott Buffalo Airport

Everything you need to know for your flight from Islip to Buffalo

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

Islip (ISP)

Buffalo (BUF)

ISP - BUF

$142 Find Cheap Flights from Islip to Buffalo - Compare and Save

Everything you should know

Cheap Flights from Islip to Buffalo (ISP-BUF)

Recent round-trip flight deals from Islip to Buffalo

Recent one-way flight deals from Islip to Buffalo

Recent last minute flight deals from Islip to Buffalo

Price, demand and travel trends for Islip to Buffalo flights

How much is a round-trip flight from Islip to Buffalo?

What is the cheapest airline to fly from Islip to Buffalo?

What is the most popular layover airport when flying from Islip to Buffalo?

What is the cheapest layover airport when flying from Islip to Buffalo?

When flying from Islip to Buffalo which airport offers the shortest layover?

Key details for Islip to Buffalo flights

Low season

High season

Cheapest flight

When to book flights from Islip to Buffalo

Your Islip to Buffalo flight questions, answered

Your guide to booking Islip to Buffalo flights

Everything you need to know for your flight from Islip to Buffalo

Information on your arrival and departure airports

Cabin class types available on flights from Islip to Buffalo

Complete your trip to Buffalo with a hotel stay or car rental

Find direct flights to and from Islip and Buffalo

Flights to other popular destinations

Flights from domestic origins to Buffalo

Choose which airport to fly into in Buffalo

Find deals for your return flight