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$269+ Cheap flights from Key West to Buffalo (EYW - BUF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — BUF
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
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 July 1, 2025.

Round-trip from

$269
(Delta)
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 July 1, 2025.

This Delta deal was found by Cheapflights users on 6/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:20 pmEYW - BUF
1 stop5h 37mDelta
Tue 9/212:02 pmBUF - EYW
1 stop5h 10mDelta
Deal found 6/30$269
This American Airlines deal was found by Cheapflights users on 7/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/294:49 pmEYW - BUF
1 stop7h 18mAmerican Airlines
Wed 9/38:00 amBUF - EYW
1 stop6h 00mAmerican Airlines
Deal found 7/1$349
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Sun 12/211:00 pmEYW - BUF
1 stop5h 21mUnited Airlines
Tue 1/66:00 amBUF - EYW
1 stop6h 46mUnited Airlines
Deal found 6/30$409

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 July 1, 2025.
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

Mon 8/25

6:20 pm-11:57 pm

1 stop5h 37m

Buffalo

Sat 8/30

12:02 pm-5:12 pm

1 stop5h 10m

$269

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 8/29

4:49 pm-12:07 am

1 stop7h 18m

Buffalo

Wed 9/3

8:00 am-2:00 pm

1 stop6h 00m

$349

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sun 12/21

1:00 pm-6:21 pm

1 stop5h 21m

Buffalo

Tue 1/6

6:00 am-12:46 pm

1 stop6h 46m

$409

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 7/11

6:27 pm-11:59 pm

1 stop5h 32m

$310

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 7/11

2:12 pm-10:28 pm

3 stops32h 16m

$553

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 July 1, 2025.
Read reviews from past customers who have flown Delta, United Airlines, 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
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
United Airlines
7.4
Good
8,858 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

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
10,000 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

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.

  • 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 $269. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $349 and $409, respectively.

  • 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.

  • What is the cheapest month to book a flight from Key West to Buffalo?

    Currently, January is the cheapest month in which you can book a flight from Key West to Buffalo (average of $256). Flying from Key West to Buffalo in December is currently the most expensive (average of $337). 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 Key West?

Book flights to Key West if you plan to visit one of these locations
Williamsville
Orchard Park
Batavia
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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$208Average$383FlexibilityNo cancel feeOn-time71%
DeltaCheapest$259Average$359FlexibilityNo cancel feeOn-timeN/A

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