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Islip

$108+ Cheap flights from Buffalo to Islip, NY (BUF - ISP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ISP
feb. 1 — feb. 81
dom. 2/1
dom. 2/8
1 adult, Economy
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Cheap flight deals from Buffalo to Islip

Best flights from Buffalo to Islip
Discover carefully curated flight deals from Buffalo to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated enero 2, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/297:59 pmBUF - ISP
1 stop24h 48mMultiple Airlines
jue. 2/511:55 amISP - BUF
2 stops30h 41mMultiple Airlines
Deal found 1/1$208
This Trip.com deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/297:59 pmBUF - ISP
1 stop24h 48mFrontier
jue. 2/57:43 pmISP - BUF
1 stop22h 53mFrontier
Deal found 1/1$225
This Southwest deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/2812:25 pmBUF - ISP
1 stop5h 55mSouthwest
sáb. 3/76:00 pmISP - BUF
1 stop6h 40mSouthwest
Deal found 12/31$306
This Southwest deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/2912:10 pmBUF - ISP
2 stops9h 45mSouthwest
jue. 2/55:55 amISP - BUF
2 stops8h 00mSouthwest
Deal found 1/1$310
This Southwest deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/216:00 amBUF - ISP
1 stop5h 40mSouthwest
lun. 3/232:00 pmISP - BUF
1 stop6h 30mSouthwest
Deal found 1/1$326
This Southwest deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/135:50 pmBUF - ISP
1 stop6h 05mSouthwest
dom. 3/155:40 pmISP - BUF
1 stop7h 05mSouthwest
Deal found 12/31$369
This Southwest deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/29:10 amBUF - ISP
1 stop8h 10mSouthwest
dom. 4/55:40 amISP - BUF
1 stop6h 10mSouthwest
Deal found 12/31$410

Find flight deals from Buffalo to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 2, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$208
(Kiwi.com)

One-way from

$108
(Frontier)

Popular in

December

Cheapest in

January

Average price

$166
Provider with most accurate pricing for Buffalo-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-Islip Long Island flights.
Search Deals
From Buffalo to Islip Long Island
Search Deals
One-way flight from Buffalo to Islip Long Island
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 2, 2026.
Use the filters below to find and compare flights from Buffalo to Islip that are best for you.

Fly from

Buffalo

Fly to

Islip

Route

Depart

Return

Price

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

jue. 1/29

7:59 pm-8:47 pm

1 stop24h 48m

Islip Long Island

jue. 2/5

11:55 am-6:36 pm

2 stops30h 41m

$208

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

jue. 1/29

7:59 pm-8:47 pm

1 stop24h 48m

Islip Long Island

jue. 2/5

7:43 pm-6:36 pm

1 stop22h 53m

$225

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

sáb. 2/28

12:25 pm-6:20 pm

1 stop5h 55m

Islip Long Island

sáb. 3/7

6:00 pm-12:40 am

1 stop6h 40m

$306

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

jue. 1/29

12:10 pm-9:55 pm

2 stops9h 45m

Islip Long Island

jue. 2/5

5:55 am-1:55 pm

2 stops8h 00m

$310

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

sáb. 3/21

6:00 am-11:40 am

1 stop5h 40m

Islip Long Island

lun. 3/23

2:00 pm-8:30 pm

1 stop6h 30m

$326

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

vie. 3/13

5:50 pm-11:55 pm

1 stop6h 05m

Islip Long Island

dom. 3/15

5:40 pm-12:45 am

1 stop7h 05m

$369

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

jue. 4/2

9:10 am-5:20 pm

1 stop8h 10m

Islip Long Island

dom. 4/5

5:40 am-11:50 am

1 stop6h 10m

$410

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

lun. 1/12

9:08 am-7:51 pm

1 stop10h 43m

$108

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

dom. 1/18

5:50 am-11:55 am

1 stop6h 05m

$179

BuffaloIslip

BUF - ISP

BUFISP

Buffalo

dom. 1/18

10:11 am-1:21 pm

3 stops27h 10m

$318

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/1

Showing 1-10 of 11 results
1
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Compare providers for flights from Buffalo to Islip

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Islip in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buffalo-Islip, New York flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Buffalo-Islip, New York flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Buffalo-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-Islip, New York flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Buffalo to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Buffalo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Buffalo to Islip, New York?

Currently, March is the cheapest month in which you can book a flight from Buffalo to Islip, New York (average of $58). Flying from Buffalo to Islip, New York in June is currently the most expensive (average of $93). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated enero 2, 2026.
Get a feel of what it's like to fly with Southwest from Buffalo to Islip by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,254 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Buffalo to Islip, New York?

    A quick flight from Buffalo to Islip, New York can take about 5h 55m. Frontier provides one of the quickest options available for as low as $306. Buffalo and Islip, New York are separated by a distance of 325 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Buffalo to Islip, New York round-trip?

    Southwest, at $199, was found to be the cheapest airline from Buffalo to Islip, New York..

  • Can I find deals for flights from Buffalo to Islip that include hotel bookings?

    Yes. In addition to deals on Buffalo to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Islip.

  • Can I find deals for business class flights from Buffalo to Islip?

    Yes. Cheapflights offers flight deals from Buffalo to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buffalo to Islip, New York?

    Currently, March is the cheapest month in which you can book a flight from Buffalo to Islip, New York (average of $58). Flying from Buffalo to Islip, New York in June is currently the most expensive (average of $93). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Islip?

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Top airline flying from Buffalo to Islip

Discover the top airline that operate flights from Buffalo to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$199Average$335FlexibilityNo cancel feeOn-time63%

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