HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Buffalo

$147+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — BUF
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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

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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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.
Wed 12/243:09 pmEYW - BUF
1 stop8h 24mUnited Airlines
Thu 1/16:30 amBUF - EYW
1 stop8h 42mUnited Airlines
Deal found 12/15$311
This American Airlines deal was found by Cheapflights users on 12/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:52 pmEYW - BUF
2 stops16h 36mAmerican Airlines
Thu 1/16:00 amBUF - EYW
1 stop6h 08mAmerican Airlines
Deal found 12/15$432
This American Airlines deal was found by Cheapflights users on 12/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:00 amEYW - BUF
1 stop4h 57mAmerican Airlines
Mon 12/225:22 pmBUF - EYW
1 stop17h 21mAmerican Airlines
Deal found 12/15$1,129

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 December 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$369
(United Airlines)

One-way from

$147
(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
Search Deals
One-way flight from Key West to Buffalo
Search Deals

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 December 18, 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

Thu 1/22

2:25 pm-10:31 pm

1 stop8h 06m

Buffalo

Sun 1/25

9:55 am-4:22 pm

1 stop6h 27m

$369

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sun 1/11

10:06 am-12:00 pm

2 stops25h 54m

$147

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sun 2/8

10:27 pm-12:44 pm

2 stops14h 17m

$148

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Wed 12/31

7:47 am-8:40 pm

3 stops12h 53m

$257

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sat 1/10

6:06 pm-11:56 pm

1 stop5h 50m

$305

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sat 1/3

10:35 pm-9:08 pm

3 stops46h 33m

$338

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sun 1/11

6:43 pm-11:41 pm

1 stop4h 58m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

  • 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.
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 December 18, 2025.
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
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

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
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

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
11,054 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

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.

  • How long is the flight from Key West to Buffalo?

    United Airlines can get you from Key West to Buffalo in just under 8h 06m. Your travel time can differ by up to . Key West and Buffalo are separated by a distance of 1281 mi.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Key West to Buffalo

See prices for flight routes from nearby airports that may be better suited for you.
Fort Lauderdale to Newark flights
Miami to John F Kennedy Intl flights
Fort Lauderdale to John F Kennedy Intl flights
Orlando to John F Kennedy Intl flights
Miami to LaGuardia flights
Fort Lauderdale to LaGuardia flights
Tampa to John F Kennedy Intl flights
Miami to Newark flights
Tampa to LaGuardia flights
Orlando to Newark flights
West Palm Beach to Newark flights
Orlando to LaGuardia flights
Tampa to Newark flights
West Palm Beach to John F Kennedy Intl flights
Jacksonville to John F Kennedy Intl flights
Jacksonville to LaGuardia flights
Jacksonville to Newark flights
West Palm Beach to LaGuardia flights
Fort Myers to John F Kennedy Intl flights
Fort Myers to Newark flights
Orlando to White Plains flights
Fort Lauderdale to Islip flights
Fort Myers to LaGuardia flights
Orlando to Islip flights
Sarasota to John F Kennedy Intl flights
West Palm Beach to Islip flights
Sarasota to Newark flights
Orlando to Buffalo flights
Orlando to Stewart flights
Sarasota to LaGuardia flights
Pensacola to LaGuardia flights
Fort Lauderdale to White Plains flights
Tampa to Islip flights
Tampa to White Plains flights
Pensacola to John F Kennedy Intl flights
Tampa to Buffalo flights
Orlando to Albany flights
Orlando to Syracuse flights
West Palm Beach to White Plains flights
Panama City to John F Kennedy Intl flights
Tampa to Stewart flights
Fort Lauderdale to Buffalo flights
Panama City to LaGuardia flights
Pensacola to Newark flights
Fort Lauderdale to Stewart flights
Gainesville to John F Kennedy Intl flights
Fort Myers to White Plains flights
Panama City to Newark flights
Orlando to Rochester flights
Gainesville to LaGuardia flights

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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$259Average$318FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$415FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.