$127+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — BUF
Aug 20 — Aug 271
Round-trip
1 adult, Economy
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Find cheap flights from Key West to Buffalo with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Key West to Buffalo
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Best
Last-minute
One-way
Cheapest flights from Key West to BuffaloExplore 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 21, 2026.
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 21, 2026.
This Delta deal was found by Cheapflights users on 7/20. 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 8/206:15 pm
EYW
- BUF
1 stop5h 44m
Delta
Tue 8/256:05 am
BUF
- EYW
1 stop4h 45m
Delta
Deal found 7/20![Delta logo]()
$342
This American Airlines deal was found by Cheapflights users on 7/16. 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 11/611:08 am
EYW
- BUF
1 stop5h 45m
American Airlines
Mon 11/96:00 am
BUF
- EYW
1 stop8h 02m
American Airlines
Deal found 7/16![American Airlines logo]()
$361
This American Airlines deal was found by Cheapflights users on 7/19. 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 8/141:50 pm
EYW
- BUF
1 stop8h 05m
American Airlines
Wed 8/196:00 am
BUF
- EYW
1 stop7h 45m
American Airlines
Deal found 7/19![American Airlines logo]()
$380
This American Airlines deal was found by Cheapflights users on 7/20. 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.
Thu 8/2010:15 am
EYW
- BUF
2 stops11h 16m
American Airlines
Tue 8/256:50 am
BUF
- EYW
1 stop6h 05m
American Airlines
Deal found 7/20![American Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 7/16. 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.
Fri 11/62:55 pm
EYW
- BUF
2 stops8h 34m
United Airlines
Mon 11/96:00 am
BUF
- EYW
1 stop7h 59m
United Airlines
Deal found 7/16![United Airlines logo]()
$537
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Fri 8/282:15 pm
EYW
- BUF
1 stop28h 43m
United Airlines
Tue 9/16:00 am
BUF
- EYW
1 stop7h 29m
United Airlines
Deal found 7/17![United Airlines logo]()
$1,033
Best flights from Key West to BuffaloDiscover carefully curated flight deals from Key West to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 21, 2026.
Discover carefully curated flight deals from Key West to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 21, 2026.
This American Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 8/201:50 pm
EYW
- BUF
1 stop8h 05m
American Airlines
Tue 8/255:00 am
BUF
- EYW
1 stop6h 36m
American Airlines
Deal found 7/21![American Airlines logo]()
$342
This United Airlines deal was found by Cheapflights users on 7/16. 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.
Fri 11/62:55 pm
EYW
- BUF
2 stops8h 34m
United Airlines
Mon 11/96:00 am
BUF
- EYW
1 stop7h 59m
United Airlines
Deal found 7/16![United Airlines logo]()
$537
This American Airlines deal was found by Cheapflights users on 7/16. 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 11/611:08 am
EYW
- BUF
1 stop5h 45m
American Airlines
Mon 11/96:00 am
BUF
- EYW
1 stop8h 02m
American Airlines
Deal found 7/16![American Airlines logo]()
$361
This American Airlines deal was found by Cheapflights users on 7/21. 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 8/141:50 pm
EYW
- BUF
1 stop8h 05m
American Airlines
Wed 8/196:00 am
BUF
- EYW
2 stops7h 08m
American Airlines
Deal found 7/21![American Airlines logo]()
$502
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Fri 8/282:15 pm
EYW
- BUF
1 stop28h 43m
United Airlines
Tue 9/16:00 am
BUF
- EYW
1 stop7h 29m
United Airlines
Deal found 7/17![United Airlines logo]()
$1,033
Last-minute flights from Key West to BuffaloDiscover last-minute flight deals from Key West to Buffalo. Data last updated July 21, 2026 and is based on user searches.
Discover last-minute flight deals from Key West to Buffalo. Data last updated July 21, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/19. 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 8/141:50 pm
EYW
- BUF
1 stop8h 05m
American Airlines
Wed 8/196:00 am
BUF
- EYW
1 stop7h 45m
American Airlines
Deal found 7/19![American Airlines logo]()
$380
This Delta deal was found by Cheapflights users on 7/20. 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 8/206:15 pm
EYW
- BUF
1 stop5h 44m
Delta
Tue 8/256:05 am
BUF
- EYW
1 stop4h 45m
Delta
Deal found 7/20![Delta logo]()
$342
This American Airlines deal was found by Cheapflights users on 7/20. 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.
Thu 8/2010:15 am
EYW
- BUF
2 stops11h 16m
American Airlines
Tue 8/256:50 am
BUF
- EYW
1 stop6h 05m
American Airlines
Deal found 7/20![American Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Fri 8/282:15 pm
EYW
- BUF
1 stop28h 43m
United Airlines
Tue 9/16:00 am
BUF
- EYW
1 stop7h 29m
United Airlines
Deal found 7/17![United Airlines logo]()
$1,033
One-way flights from Key West to BuffaloSearch for one-way flight options from Key West to Buffalo. Find affordable one-way fares based on user searches. Data last updated July 21, 2026.
Search for one-way flight options from Key West to Buffalo. Find affordable one-way fares based on user searches. Data last updated July 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/19. 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.
Tue 8/181:14 pm
EYW
- BUF
2 stops21h 15m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Wed 8/510:34 am
EYW
- BUF
2 stops23h 55m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 11/1410:04 am
EYW
- BUF
2 stops26h 14m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$209
This Delta deal was found by Cheapflights users on 7/19. 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.
Tue 8/186:15 pm
EYW
- BUF
1 stop5h 44m
Delta
Deal found 7/19![Delta logo]()
$268
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Thu 10/225:34 pm
EYW
- BUF
1 stop5h 58m
American Airlines
Deal found 7/19![American Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Sun 1/33:10 pm
EYW
- BUF
1 stop25h 36m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$333
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Wed 8/52:26 pm
EYW
- BUF
1 stop8h 40m
United Airlines
Deal found 7/20![United Airlines logo]()
$387
Find 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 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $337 (American Airlines) |
One-way from | $127 (Kiwi.com) |
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 21, 2026.
Use the filters below to find and compare flights from Key West to Buffalo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Key WestBuffalo
EYW - BUF
EYWBUF
Key West
Thu 8/20
1:50 pm-9:55 pm
1 stop8h 05m
Buffalo
Tue 8/25
5:00 am-11:36 am
1 stop6h 36m
$342
Quickest round-trip
Key WestBuffalo
EYW - BUF
EYWBUF
Key West
Fri 11/6
11:08 am-4:53 pm
1 stop5h 45m
Buffalo
Mon 11/9
6:00 am-2:02 pm
1 stop8h 02m
$361
Key WestBuffalo
EYW - BUF
EYWBUF
Key West
Fri 8/14
1:50 pm-9:55 pm
1 stop8h 05m
Buffalo
Wed 8/19
6:00 am-1:08 pm
2 stops7h 08m
$502
Key WestBuffalo
EYW - BUF
EYWBUF
Key West
Fri 11/6
2:55 pm-11:29 pm
2 stops8h 34m
Buffalo
Mon 11/9
6:00 am-1:59 pm
1 stop7h 59m
$537
Key WestBuffalo
EYW - BUF
EYWBUF
Key West
Fri 8/28
2:15 pm-6:58 pm
1 stop28h 43m
Buffalo
Tue 9/1
6:00 am-1:29 pm
1 stop7h 29m
$1,033
Cheapest one-way
Key WestBuffalo
EYW - BUF
EYWBUF
Key West
Tue 8/18
1:14 pm-10:29 am
2 stops21h 15m
$127
Key WestBuffalo
EYW - BUF
EYWBUF
Key West
Wed 8/5
10:34 am-10:29 am
2 stops23h 55m
$193
Key WestBuffalo
EYW - BUF
EYWBUF
Key West
Sat 11/14
10:04 am-12:18 pm
2 stops26h 14m
$209
Quickest one-way
Key WestBuffalo
EYW - BUF
EYWBUF
Key West
Tue 8/18
6:15 pm-11:59 pm
1 stop5h 44m
$268
Key WestBuffalo
EYW - BUF
EYWBUF
Key West
Wed 8/5
2:26 pm-11:06 pm
1 stop8h 40m
$387
Showing 1-10 of 12 resultsSorted by cheapest first
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 July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Key West-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Key West-Buffalo flight deals on Cheapflights vs. FlightHub >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 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 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.
EYW-BUF
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 21, 2026.
Read reviews from past customers who have flown Delta 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.
Comfort
7.8
Overall
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreChristopher,Aug 2023
JFK - BUF
Comfort
7.8
Overall
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreChristopher,Aug 2023
JFK - BUF
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.
Traveling to a place near Buffalo?
Book flights to Buffalo if you plan to visit one of these locationsLockport
Cheektowaga
Amherst
Williamsville
Orchard Park
Eden
Bowmansville
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Other flights to Buffalo
Explore flights to Buffalo departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 21, 2026.
Complete your trip
Complete your trip to Buffalo by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Key West to Buffalo by cabin class
Find flights from Key West to Buffalo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Key West and Buffalo flights
Browse other Key West and Buffalo flight options. Last updated on July 21, 2026.
Other flights from Key West
Browse through other flights departing from Key West. Flights are based on user searches made on Cheapflights and were last updated on July 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Key West to Buffalo
Discover the top airline 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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$322 | Average$373 | FlexibilityNo cancel fee | On-timeN/A |