BUF - ISP

$117 Find Cheap Flights from Buffalo to Islip

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to Islip departing on 5/10. 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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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$202
Frontier
Tue 5/19Tue 5/26
BUF - ISP • 2 stops
Cheapest one-way
$117
Frontier
Sun 5/10
BUF - ISP • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Buffalo and Islip. You'll need at least 1 connection.
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We hope you love your trip to Islip!
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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

Tue, May 19 - Tue, May 26
Frontier Logo
11:36 am - 10:05 am
BUF
-
ISP
22h 29m
2 stops
Frontier Logo
6:02 pm - 6:59 pm
ISP
-
BUF
24h 57m
1 stop
$202Frontier
Wed, May 6 - Thu, May 7
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
Sun, May 10 - Sun, May 17
Frontier Logo
8:49 pm - 10:05 am
BUF
-
ISP
13h 16m
1 stop
Frontier Logo
11:12 am - 6:46 pm
ISP
-
BUF
7h 34m
1 stop
$225Frontier
Thu, May 7 - Thu, May 14
Frontier Logo
8:49 pm - 10:05 am
BUF
-
ISP
13h 16m
1 stop
Frontier Logo
11:12 am - 6:46 pm
ISP
-
BUF
7h 34m
1 stop
$246Frontier
Thu, Jun 11 - Sun, Jun 14
Frontier Logo
9:02 pm - 10:03 am
BUF
-
ISP
13h 01m
1 stop
Frontier Logo
10:48 am - 7:12 pm
ISP
-
BUF
8h 24m
1 stop
$250Frontier
Tue, May 19 - Tue, May 26
Southwest Logo
1:10 pm - 6:30 pm
BUF
-
ISP
5h 20m
1 stop
Southwest Logo
9:00 am - 12:15 pm
ISP
-
BUF
3h 15m
1 stop
$267Southwest
Thu, May 7 - Fri, May 15
Frontier Logo
8:49 pm - 10:05 am
BUF
-
ISP
13h 16m
1 stop
Frontier Logo
11:00 am - 6:46 pm
ISP
-
BUF
7h 46m
1 stop
$270Frontier
Sun, May 10 - Sun, May 17
Multiple Airlines Logo
8:49 pm - 10:05 am
BUF
-
ISP
13h 16m
1 stop
Multiple Airlines Logo
7:53 pm - 10:41 am
ISP
-
BUF
38h 48m
2 stops
$271Multiple Airlines
Wed, May 6 - Thu, May 7
Southwest Logo
9:45 am - 1:50 pm
BUF
-
ISP
4h 05m
1 stop
Southwest Logo
12:30 pm - 10:45 pm
ISP
-
BUF
10h 15m
2 stops
$285Southwest
Thu, Jun 4 - Sat, Jun 6
Southwest Logo
5:55 pm - 11:35 pm
BUF
-
ISP
5h 40m
1 stop
Southwest Logo
12:15 pm - 4:50 pm
ISP
-
BUF
4h 35m
1 stop
$290Southwest
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 provide the cheapest flights from Buffalo to Islip?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Buffalo to Islip were found on Frontier ($202) and Southwest ($218).

Find deals

Good to know

Cheapest flight$117
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 $117 for a one-way ticket and $202 for a round-trip.

  • 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.

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

Information on your arrival and departure airports

Buffalo (BUF)
Islip (ISP)