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$152+ Cheap flights from Buffalo to Key West (BUF - EYW)

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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — EYW
Oct 30 — Nov 61
Thu 10/30
Thu 11/6
1 adult, Economy
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Cheapflights Tip: The best prices from Buffalo to Key West are usually found in September or August, booked 9 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Buffalo to Key West

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Key West (EYW). 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 September 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$264
(United Airlines)

One-way from

$152
(Kiwi.com)

Popular in

April

Cheapest in

September

Average price

$300
Provider with most accurate pricing for Buffalo-Key West flight deals.
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Provider most trusted by Cheapflights users for Buffalo-Key West flights.
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From Buffalo to Key West
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One-way flight from Buffalo to Key West
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Buffalo to Key West

Cheapest flights from Buffalo to Key West
Explore the most affordable flight options available from Buffalo to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 30, 2025.

This United Airlines deal was found by Cheapflights users on 9/29. 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 11/166:25 amBUF - EYW
1 stop7h 21mUnited Airlines
Sat 11/223:00 pmEYW - BUF
1 stop7h 58mUnited Airlines
Deal found 9/29$264
This American Airlines deal was found by Cheapflights users on 9/28. 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.
Sun 12/76:00 amBUF - EYW
1 stop6h 05mAmerican Airlines
Sun 12/145:09 pmEYW - BUF
1 stop5h 42mAmerican Airlines
Deal found 9/28$269
This American Airlines deal was found by Cheapflights users on 9/29. 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.
Tue 12/211:35 amBUF - EYW
2 stops7h 48mAmerican Airlines
Tue 12/97:30 amEYW - BUF
2 stops7h 39mAmerican Airlines
Deal found 9/29$279
This Delta deal was found by Cheapflights users on 9/29. 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.
Sat 10/257:00 amBUF - EYW
2 stops13h 06mDelta
Tue 10/286:17 pmEYW - BUF
1 stop5h 22mDelta
Deal found 9/29$299
This American Airlines deal was found by Cheapflights users on 9/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:14 amBUF - EYW
1 stop7h 44mAmerican Airlines
Sun 10/194:53 pmEYW - BUF
1 stop6h 00mAmerican Airlines
Deal found 9/30$339
This American Airlines deal was found by Cheapflights users on 9/29. 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.
Sun 11/1611:54 amBUF - EYW
2 stops7h 29mAmerican Airlines
Sat 11/2212:53 pmEYW - BUF
1 stop5h 35mAmerican Airlines
Deal found 9/29$347
This Delta deal was found by Cheapflights users on 9/30. 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.
Fri 11/286:30 amBUF - EYW
1 stop7h 33mDelta
Fri 12/56:10 pmEYW - BUF
1 stop5h 49mDelta
Deal found 9/30$364

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to Key West 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 September 30, 2025.
Use the filters below to find and compare flights from Buffalo to Key West that are best for you.

Fly from

Buffalo

Fly to

Key West

Route

Depart

Return

Price

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Sun 12/7

6:00 am-12:05 pm

1 stop6h 05m

Key West

Sun 12/14

5:09 pm-10:51 pm

1 stop5h 42m

$269

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Tue 12/2

12:57 pm-5:51 pm

1 stop4h 54m

Key West

Tue 12/9

6:33 pm-11:24 pm

1 stop4h 51m

$269

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Thu 12/4

12:43 pm-7:35 pm

2 stops6h 52m

Key West

Tue 12/9

7:30 am-12:05 pm

1 stop4h 35m

$274

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Tue 1/20

11:27 am-9:47 pm

2 stops10h 20m

Key West

Mon 1/26

6:06 am-3:17 pm

2 stops9h 11m

$279

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Sat 10/25

7:00 am-8:06 pm

2 stops13h 06m

Key West

Tue 10/28

6:17 pm-11:39 pm

1 stop5h 22m

$299

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Wed 10/15

5:14 am-12:58 pm

1 stop7h 44m

Key West

Sun 10/19

4:53 pm-10:53 pm

1 stop6h 00m

$339

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Sat 2/28

5:37 am-10:40 am

1 stop5h 03m

Key West

Wed 3/4

3:57 pm-12:07 am

2 stops8h 10m

$347

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Fri 11/14

2:42 pm-10:07 am

2 stops19h 25m

$152

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Fri 11/14

5:30 pm-11:53 am

1 stop18h 23m

$179

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Mon 12/1

6:00 am-2:11 pm

1 stop8h 11m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/30

Compare providers for flights from Buffalo to Key West

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 Key West in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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-Key West flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Key West flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Key West flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-Key West flights, Cheapflights users trust FlightHub the most. FlightHub 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-Key West 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 Key West

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

How far ahead should I book a flight from Buffalo to Key West?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Key West. Price data was last updated on September 26, 2025.

To ensure you get the cheapest price possible for a flight from Buffalo to Key West, you should look to book at least 9 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Buffalo to Key West (average of $328). Flying from Buffalo to Key West in March is currently the most expensive (average of $488). 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.

What is the cheapest time of day to fly from BUF to EYW?

Find hourly flight availability from Buffalo to Key West. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 30, 2025.

One of the essential ways to save on airfare from Buffalo to Key West is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 39% on airfare.

How much does it cost to fly round-trip from Buffalo to Key West?

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. 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 Key West. Reviews last updated September 30, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Buffalo to Key West have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
United Airlines
7.4
Good
8,931 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Related info for your journey

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

    Departing from Buffalo to Key West will take you 6h 52m. The distance between Buffalo and Key West is about 1281 mi.

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

    United Airlines, at $220, was found to be the cheapest airline from Buffalo to Key West.Alternate airlines to your destination round-trip include Delta and American Airlines. Users have found that United Airlines is 47% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Buffalo to Key West 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 Key West?

    Currently, August is the cheapest month in which you can book a flight from Buffalo to Key West (average of $328). Flying from Buffalo to Key West in March is currently the most expensive (average of $488). 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

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Top 3 airlines flying from Buffalo to Key West

Discover the top 3 airlines that operate flights from Buffalo to Key West. 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 September 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$220Average$471FlexibilityNo cancel feeOn-time69%
DeltaCheapest$244Average$389FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$427FlexibilityNo cancel feeOn-time71%

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