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$178+ Cheap flights from Key West to Buffalo (EYW - BUF)

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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — BUF
Feb 17 — Feb 241
Tue 2/17
Tue 2/24
1 adult, Economy
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Cheap flight deals from Key West to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from Key West (EYW) to Buffalo (BUF). 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 January 18, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$453
(United Airlines)

One-way from

$178
(Kiwi.com)
Provider with most accurate pricing for Key West-Buffalo flight deals.
Search Deals
Provider most trusted by Cheapflights users for Key West-Buffalo flights.
Search Deals
From Key West to Buffalo
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One-way flight from Key West to Buffalo
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Find flight deals from Key West to Buffalo

Cheapest flights from Key West to Buffalo
Explore the most affordable flight options available from Key West to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 18, 2026.

This United Airlines deal was found by Cheapflights users on 1/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:35 pm
EYW
-
BUF
1 stop5h 09m
United Airlines
Sun 3/16:07 am
BUF
-
EYW
1 stop10h 00m
United Airlines
Deal found 1/17$453
This United Airlines deal was found by Cheapflights users on 1/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/222:25 pm
EYW
-
BUF
1 stop8h 06m
United Airlines
Sun 1/258:30 am
BUF
-
EYW
1 stop6h 47m
United Airlines
Deal found 1/15$595
This American Airlines deal was found by Cheapflights users on 1/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:20 pm
EYW
-
BUF
1 stop7h 30m
American Airlines
Fri 5/85:30 am
BUF
-
EYW
1 stop5h 54m
American Airlines
Deal found 1/18$609

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key West to Buffalo 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 January 18, 2026.
Use the filters below to find and compare flights from Key West to Buffalo that are best for you.

Fly from

Key West

Fly to

Buffalo

Route

Depart

Return

Price

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 2/26

6:35 pm-11:44 pm

1 stop5h 09m

Buffalo

Sun 3/1

6:07 am-4:07 pm

1 stop10h 00m

$453

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Mon 5/4

4:20 pm-11:50 pm

1 stop7h 30m

Buffalo

Fri 5/8

5:30 am-11:24 am

1 stop5h 54m

$609

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Mon 2/2

6:06 pm-11:28 pm

1 stop5h 22m

Buffalo

Fri 2/6

6:00 am-1:48 pm

1 stop7h 48m

$789

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Mon 2/2

4:37 pm-11:41 pm

2 stops7h 04m

Buffalo

Fri 2/6

11:27 am-9:47 pm

2 stops10h 20m

$800

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Wed 2/18

12:38 pm-12:54 pm

2 stops24h 16m

$178

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sun 3/15

9:46 am-12:05 pm

2 stops26h 19m

$199

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sun 1/25

10:06 am-12:44 pm

2 stops26h 38m

$206

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 2/19

9:46 am-9:57 am

1 stop24h 11m

$228

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sun 3/22

12:47 pm-7:01 pm

1 stop6h 14m

$232

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 2/20

1:06 pm-11:00 am

2 stops21h 54m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/17

Showing 1-10 of 11 results
1
2

Compare providers for flights from Key West to Buffalo

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 Key West to Buffalo in January.
ProviderPrice AccuracyTrust Score*
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 Key West-Buffalo flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Key West-Buffalo flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Key West-Buffalo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Key West-Buffalo 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 Key West-Buffalo 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 Key West to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from Key West 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.

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. 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 Buffalo. Reviews last updated January 18, 2026.
Read reviews from past customers who have flown Delta and American Airlines from Key West to Buffalo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,075 reviews

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Delta
7.9
Good
8,075 reviews
Delta
7.9
Good
8,075 reviews

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
American Airlines
7.2
Good
11,155 reviews
Delta
7.9
Good
8,075 reviews

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!

Related info for your journey

Find useful and relevant information for your journey from Key West to Buffalo. 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 Key West to Buffalo?

    United Airlines, American Airlines, and Delta can get you from Key West to Buffalo in just under 5h 09m. Your travel time can differ by up to 2h 21m. Key West and Buffalo are separated by a distance of 1281 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Key West to Buffalo round-trip?

    Flying on Delta is currently your cheapest option to Buffalo, with prices starting at $259. Another option worth looking into is American Airlines, starting at $268 round trip.

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

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

  • How can I find direct flights from Key West to Buffalo?

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

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

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

See more FAQs

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Lockport
Cheektowaga
Batavia
Williamsville
Orchard Park
Eden
Amherst
West Seneca

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Top 2 airlines flying from Key West to Buffalo

Discover the top 2 airlines that operate flights from Key West to Buffalo. 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 January 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$259Average$318FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$415FlexibilityNo cancel feeOn-time71%

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