BUF - ISP

$189 Find Cheap Flights from Buffalo to Islip - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$242
Typical prices: $199-$376
Southwest
Tue 9/25Tue 10/2
BUF - ISP • 2 stops
Cheapest one-way
$181
Typical prices: $145-$229
Southwest
Mon 10/8
BUF - ISP • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Buffalo and Islip. You'll need to take a connecting flight to reach the destination.
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Cheap Flights from Buffalo to Islip (BUF-ISP)

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

Recent round-trip flight deals from Buffalo to Islip

Fri, Sep 25 - Fri, Oct 2
Southwest Logo
1:40 pm - 10:10 pmBUF  Buffalo-ISP Islip Long Island
8h 30m2 stops Tampa Baltimore/Washington
Southwest Logo
5:40 pm - 11:40 pmISP  Islip Long Island-BUF Buffalo
6h 00m1 stop Baltimore/Washington
$242Southwest
Tue, Sep 29 - Tue, Oct 6
Southwest Logo
3:00 pm - 9:10 pmBUF  Buffalo-ISP Islip Long Island
6h 10m1 stop Baltimore/Washington
Southwest Logo
9:40 am - 3:20 pmISP  Islip Long Island-BUF Buffalo
5h 40m1 stop Baltimore/Washington
$276Southwest
Tue, Sep 29 - Tue, Oct 6
Southwest Logo
8:05 am - 5:00 pmBUF  Buffalo-ISP Islip Long Island
8h 55m2 stops Tampa Baltimore/Washington
Southwest Logo
4:20 pm - 10:25 pmISP  Islip Long Island-BUF Buffalo
6h 05m1 stop Baltimore/Washington
$281Southwest
Tue, Sep 29 - Tue, Oct 6
Southwest Logo
8:05 am - 5:00 pmBUF  Buffalo-ISP Islip Long Island
8h 55m2 stops Tampa Baltimore/Washington
Southwest Logo
12:50 pm - 10:15 pmISP  Islip Long Island-BUF Buffalo
9h 25m2 stops Baltimore/Washington Orlando
$286Southwest
Fri, Oct 2 - Sun, Oct 4
Southwest Logo
12:35 pm - 5:00 pmBUF  Buffalo-ISP Islip Long Island
4h 25m1 stop Baltimore/Washington
Southwest Logo
5:40 am - 11:40 amISP  Islip Long Island-BUF Buffalo
6h 00m1 stop Baltimore/Washington
$322Southwest
Fri, Oct 2 - Sun, Oct 4
Southwest Logo
2:50 pm - 11:10 pmBUF  Buffalo-ISP Islip Long Island
8h 20m2 stops Baltimore/Washington Orlando
Southwest Logo
5:40 am - 11:40 amISP  Islip Long Island-BUF Buffalo
6h 00m1 stop Baltimore/Washington
$327Southwest
Fri, Sep 25 - Fri, Oct 2
Southwest Logo
5:40 am - 9:40 amBUF  Buffalo-ISP Islip Long Island
4h 00m1 stop Baltimore/Washington
Southwest Logo
5:40 pm - 11:40 pmISP  Islip Long Island-BUF Buffalo
6h 00m1 stop Baltimore/Washington
$332Southwest
Mon, Oct 5 - Mon, Oct 5
Southwest Logo
5:30 am - 2:30 pmBUF  Buffalo-ISP Islip Long Island
9h 00m2 stops Orlando Baltimore/Washington
Southwest Logo
5:40 pm - 11:45 pmISP  Islip Long Island-BUF Buffalo
6h 05m1 stop Baltimore/Washington
$347Southwest
Tue, Sep 15 - Sat, Sep 19
Southwest Logo
6:00 am - 12:10 pmBUF  Buffalo-ISP Islip Long Island
6h 10m1 stop Baltimore/Washington
Southwest Logo
11:55 am - 5:40 pmISP  Islip Long Island-BUF Buffalo
5h 45m1 stop Baltimore/Washington
$351Southwest
Tue, Sep 15 - Sat, Sep 19
Southwest Logo
6:50 am - 5:00 pmBUF  Buffalo-ISP Islip Long Island
10h 10m2 stops Orlando Baltimore/Washington
Southwest Logo
2:00 pm - 8:35 pmISP  Islip Long Island-BUF Buffalo
6h 35m1 stop Orlando
$356Southwest
Booking Insights

Price, demand and travel trends for Buffalo to Islip flights

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

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

Round-trip flights from Buffalo to Islip start at $242. Prices are typical for this route right now, with typical round-trip fares ranging from $199 to $376. The lowest price found in the past 5 days was $242 on Southwest.

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Key details for Buffalo to Islip flights

Cheapest flight

$181
Flight from Buffalo to Islip

When to book flights from Buffalo to Islip

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

Your Buffalo to Islip flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

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

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

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

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

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

    Most connecting flights from Buffalo to Islip pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

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

    Yes. Being flexible with your travel dates can save you up to 67% on the Buffalo to Islip route. Wednesday is the cheapest departure day at $199 round-trip on average, while Friday is the most expensive at $586, a difference of $387. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Buffalo to Islip?

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

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

    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 Buffalo to Islip 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 $242 to $822. That means the highest observed fare was about 3x higher than the lowest one.

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

    One-way fares from Buffalo to Islip are currently higher than usual. Average one-way flight prices are about $406, which is 77% above the typical average for this route.

  • What car rental options are available at Islip Long Island Airport (ISP)?

    Islip Long Island Airport (ISP) hosts 5 major car rental companies, with daily rates starting from around $36 for economy cars. Top options include:
    · Budget
    · Enterprise Rent-A-Car
    · Avis
    · National
    · Empire Rent A Car

Your guide to booking Buffalo to Islip flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Friday. On this route, Wednesday flights average $199 - about $387 less than Friday (66% savings) based on the last 12 months.

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

Information on your arrival and departure airports

Buffalo (BUF)
Islip (ISP)