Cheap Flight Tickets from Islip (ISP) to Buffalo (BUF), Starting at $638

Good to Know: Cheapest and Fastest ISP - BUF Flights

Useful information for finding best airline tickets from Long Island Mac Arthur to Buffalo Niagara International on your next trip.

Cheapest Round Trip Flight

$638

WN Southwest Airlines • 1 stop • 11h 55m

Nov 13 – Nov 20

The cheapest round trip flight from Islip to Buffalo (ISP-BUF-ISP) is currently $638

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Fastest Flight

11h 40m

The fastest nonstop flight from Islip to Buffalo (ISP-BUF) takes 11h 40m

Top Airlines Flying from Islip to Buffalo

Southwest Airlines-WN

Southwest Airlines

Latest Flight Deals from Islip (ISP) to Buffalo (BUF)

Compare and book low fare round-trip air tickets from Islip to Buffalo. Ideal for travelers with confirmed return itineraries.

Nov 13 - Nov 20, Economy
WN
Islip → Buffalo
11h 55m
12:25 PM - 7:40 PM • 1 stop
WN
Islip → Buffalo
5h 40m
8:05 AM - 11:45 AM • 1 stop
$638
Southwest Airlines
Nov 13 - Nov 20, Economy
WN
Islip → Buffalo
11h 40m
4:25 PM - 11:25 PM • 1 stop
WN
Islip → Buffalo
5h 40m
8:05 AM - 11:45 AM • 1 stop
$638
Southwest Airlines
Nov 13 - Nov 20, Economy
WN
Islip → Buffalo
14h 10m
5:35 AM - 2:25 PM • 1 stop
WN
Islip → Buffalo
5h 40m
8:05 AM - 11:45 AM • 1 stop
$638
Southwest Airlines
Nov 13 - Nov 20, Economy
WN
Islip → Buffalo
15h 50m
1:35 PM - 11:25 PM • 1 stop
WN
Islip → Buffalo
5h 40m
8:05 AM - 11:45 AM • 1 stop
$643
Southwest Airlines
Nov 13 - Nov 20, Economy
WN
Islip → Buffalo
15h 25m
6:00 AM - 3:25 PM • 2 stops
WN
Islip → Buffalo
5h 40m
8:05 AM - 11:45 AM • 1 stop
$643
Southwest Airlines
Nov 13 - Nov 20, Economy
WN
Islip → Buffalo
13h 45m
6:00 AM - 2:25 PM • 2 stops
WN
Islip → Buffalo
5h 40m
8:05 AM - 11:45 AM • 1 stop
$643
Southwest Airlines

Fly from Islip to Buffalo with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Islip to Buffalo? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Islip to Buffalo Flights

What are the airports in Islip?
ISP
What’s the most popular airline flying from ISP to BUF?
The most popular airline flying from Islip to Buffalo are
Can I fly from ISP to BUF non-stop?
NO
Which airlines fly nonstop between Islip and Buffalo?
The non-stop flights between Islip and Buffalo are .
What’s the earliest departure time from ISP to BUF Airport?
The earliest flight leaves ISP at 5:35 am and lands in BUF - Buffalo Niagara International
What are the airports in Buffalo?
BUF
Can I make changes to my Islip to Buffalo flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ISP to BUF?
Read the fare rules of the Islip to Buffalo air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Islip and Buffalo?
operate flights between Islip and Buffalo
How long does a flight from Islip to Buffalo take?
It takes approximately 1 hour to fly non-stop from ISP to BUF, which is 325.99 miles by air.
Which airlines provide the cheapest flights from Islip (ISP) to Buffalo (BUF) ?
In the past couple of days, the cheapest tickets to BUF from ISP were found on WN : USD 638
Do I need a passport to fly between ISP and BUF?
No
What’s the latest departure time from ISP to BUF ?
The last flight leaves ISP at 4:25 pm

Islip (ISP) to Buffalo (BUF): Airport Information

Origin Airport Long Island Mac Arthur , Islip, US
Destination Airport Buffalo Niagara International , Buffalo, US
Distance 326 miles

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