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$239+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — EYW
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 August 14, 2025.

Round-trip from

$269
(American Airlines)

One-way from

$239
(Delta)

Popular in

April

Cheapest in

September

Average price

$303
From Buffalo to Key West
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One-way flight from Buffalo to Key West
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Highest demand for flights based on searches. 11% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Sat 10/119:45 pmBUF - EYW
1 stop16h 55mMultiple Airlines
Thu 10/163:30 pmEYW - BUF
1 stop28h 48mMultiple Airlines
Deal found 8/12$246
This American Airlines deal was found by Cheapflights users on 8/14. 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 10/276:00 amBUF - EYW
1 stop6h 10mAmerican Airlines
Mon 11/36:33 pmEYW - BUF
1 stop4h 53mAmerican Airlines
Deal found 8/14$269
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Sat 11/111:52 amBUF - EYW
2 stops10h 04mAmerican Airlines
Sat 11/812:40 pmEYW - BUF
2 stops10h 12mAmerican Airlines
Deal found 8/12$279
This American Airlines deal was found by Cheapflights users on 8/14. 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 11/2812:03 pmBUF - EYW
1 stop6h 24mAmerican Airlines
Fri 12/52:50 pmEYW - BUF
1 stop7h 32mAmerican Airlines
Deal found 8/14$314
This Delta deal was found by Cheapflights users on 8/12. 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.
Thu 9/410:41 amBUF - EYW
2 stops9h 31mDelta
Mon 9/86:20 pmEYW - BUF
1 stop5h 37mDelta
Deal found 8/12$324
This Delta deal was found by Cheapflights users on 8/14. 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 8/236:00 amBUF - EYW
1 stop4h 56mDelta
Thu 8/286:20 pmEYW - BUF
1 stop5h 37mDelta
Deal found 8/14$334
This American Airlines deal was found by Cheapflights users on 8/12. 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 9/168:00 amBUF - EYW
1 stop6h 00mAmerican Airlines
Sat 9/203:45 pmEYW - BUF
1 stop6h 08mAmerican Airlines
Deal found 8/12$342

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 August 14, 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

Sat 10/11

9:45 pm-2:40 pm

1 stop16h 55m

Key West

Thu 10/16

3:30 pm-8:18 pm

1 stop28h 48m

$246

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Mon 10/27

6:00 am-12:10 pm

1 stop6h 10m

Key West

Mon 11/3

6:33 pm-11:26 pm

1 stop4h 53m

$269

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Sat 11/1

3:34 pm-9:56 pm

1 stop6h 22m

Key West

Sat 11/8

12:40 pm-6:27 pm

1 stop5h 47m

$269

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Thu 9/4

10:41 am-8:12 pm

2 stops9h 31m

Key West

Mon 9/8

6:20 pm-11:57 pm

1 stop5h 37m

$299

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Sat 8/23

6:00 am-10:56 am

1 stop4h 56m

Key West

Thu 8/28

6:20 pm-11:57 pm

1 stop5h 37m

$334

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Wed 8/27

8:00 am-1:51 pm

1 stop5h 51m

Key West

Sat 8/30

1:58 pm-6:48 pm

1 stop4h 50m

$334

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Wed 8/20

5:30 am-11:40 am

1 stop6h 10m

Key West

Mon 8/25

5:02 pm-11:00 pm

1 stop5h 58m

$334

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Wed 10/1

5:38 am-11:49 am

1 stop6h 11m

$239

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Wed 10/15

6:30 am-2:29 pm

1 stop7h 59m

$239

BuffaloKey West

BUF - EYW

BUFEYW

Buffalo

Wed 10/1

6:00 am-10:55 am

1 stop4h 55m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 11 results
1
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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 August 8, 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 $492). 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 August 14, 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.

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 August 14, 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
7,980 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

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
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

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
7,980 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

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.

  • 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 45% 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 $492). 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$220Average$471FlexibilityNo cancel feeOn-time69%
DeltaCheapest$240Average$389FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$255Average$416FlexibilityNo cancel feeOn-time71%

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