BUF - ISP

$207 Find Cheap Flights from Buffalo to Islip

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to Islip departing on 1/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Islip, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Islip, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$207
Southwest
Sat 1/31Mon 2/2
BUF - ISP • 1 stop
Cheapest one-way
Multiple Airlines
Wed 11/26
BUF - ISP • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Islip!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Buffalo to Islip (BUF-ISP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to Islip that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buffalo to Islip

Sat, Jan 31 - Mon, Feb 2
Southwest Logo
11:10 am - 3:25 pmBUF-ISP
4h 15m1 stop
Southwest Logo
6:00 am - 12:30 pmISP-BUF
6h 30m1 stop
$207Southwest
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Sat, Jan 31 - Mon, Feb 2
Southwest Logo
10:40 am - 9:50 pmBUF-ISP
11h 10m2 stops
Southwest Logo
6:00 am - 12:30 pmISP-BUF
6h 30m1 stop
$212Southwest
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Sat, Jan 31 - Mon, Feb 2
Southwest Logo
10:40 am - 9:50 pmBUF-ISP
11h 10m2 stops
Southwest Logo
12:40 pm - 10:20 pmISP-BUF
9h 40m2 stops
$252Southwest
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Tue, Dec 16 - Mon, Jan 19
Southwest Logo
3:40 pm - 10:05 pmBUF-ISP
6h 25m1 stop
Southwest Logo
4:05 pm - 10:30 pmISP-BUF
6h 25m1 stop
$264Southwest
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Tue, Dec 16 - Mon, Jan 19
Southwest Logo
1:50 pm - 10:05 pmBUF-ISP
8h 15m2 stops
Southwest Logo
4:05 pm - 10:30 pmISP-BUF
6h 25m1 stop
$269Southwest
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Fri, Jan 30 - Mon, Feb 2
Southwest Logo
6:20 am - 4:15 pmBUF-ISP
9h 55m2 stops
Southwest Logo
12:40 pm - 10:20 pmISP-BUF
9h 40m2 stops
$309Southwest
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Tue, Dec 16 - Mon, Jan 19
Southwest Logo
6:45 am - 3:05 pmBUF-ISP
8h 20m2 stops
Southwest Logo
11:50 am - 9:15 pmISP-BUF
9h 25m2 stops
$359Southwest
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Booking Insights

KAYAK's insights & trends for Buffalo to Islip flights

Get data-powered insights and trends into flights from Buffalo to Islip to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Buffalo and Islip?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Buffalo to Islip.

There is just one airline that flies from Buffalo to Islip direct and that is Southwest. The best round-trip deal found from Southwest for the route is $199.

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Good to know

Cheapest flight$207
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
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.

FAQs for booking flights from Buffalo to Islip

  • What is the cheapest flight from Buffalo to Islip?

    In the last 3 days, the lowest price for a flight from Buffalo to Islip was $207 for a round-trip ticket.

  • Do I need a passport to fly between Buffalo and Islip?

    A passport is not required to fly from Buffalo to Islip.

  • Which aircraft models fly most regularly from Buffalo to Islip?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Buffalo to Islip?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to Islip.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to Islip?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Buffalo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to Islip?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Buffalo with another airline. Booking your flights between Buffalo and ISP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to Islip?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Buffalo to Islip

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to Islip. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to Islip? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4254 reviews
7.0Food
8.0Comfort
7.5Entertainment
8.6Crew
8.1Boarding
Airline reviews

No delays and arrived to destination 30 min early. Staff was super friendly.

10.0 ExcellentIlevba, Nov 2025DCA - DAL
Read more Southwest reviews

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Everything a cheap airline should be at normal airline rates.

Plane crashed into a bus or some other vehicle on the ground while pulling out of the gate. No injuries, but wing tip was damaged and returned to gate for “maintenance issues” and we departed 5 hours later because the plane went out of service and new plane was flown in from a nearby airport, Midway.

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

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

Information on your arrival and departure airports

Buffalo (BUF)
Islip (ISP)