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Cheap flights from Key West to Buffalo from $128

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to Buffalo departing on 4/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Key West to Buffalo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:22 pm - 6:46 pm
EYW
-
BUF
26h 24m
1 stop
Multiple Airlines Logo
7:41 pm - 12:21 pm
BUF
-
EYW
16h 40m
1 stop
$296Multiple Airlines
Thu, Mar 26 - Mon, Mar 30
Delta Logo
6:23 pm - 11:37 pm
EYW
-
BUF
5h 14m
1 stop
Delta Logo
6:00 am - 12:40 pm
BUF
-
EYW
6h 40m
1 stop
$309Delta
Fri, May 1 - Sun, May 3
American Airlines Logo
5:03 pm - 11:59 pm
EYW
-
BUF
6h 56m
1 stop
American Airlines Logo
1:45 pm - 10:58 pm
BUF
-
EYW
9h 13m
2 stops
$314American Airlines
Fri, May 1 - Sun, May 3
Multiple Airlines Logo
4:22 pm - 6:46 pm
EYW
-
BUF
26h 24m
1 stop
Multiple Airlines Logo
1:00 pm - 12:21 pm
BUF
-
EYW
23h 21m
2 stops
$315Multiple Airlines
Thu, Mar 26 - Mon, Mar 30
American Airlines Logo
3:58 pm - 11:47 pm
EYW
-
BUF
7h 49m
2 stops
American Airlines Logo
1:45 pm - 10:58 pm
BUF
-
EYW
9h 13m
2 stops
$319American Airlines
Fri, May 1 - Sun, May 3
Multiple Airlines Logo
1:06 pm - 10:49 am
EYW
-
BUF
21h 43m
1 stop
Multiple Airlines Logo
8:08 pm - 9:09 am
BUF
-
EYW
13h 01m
2 stops
$326Multiple Airlines
Fri, May 1 - Sun, May 3
Delta Logo
6:23 pm - 11:37 pm
EYW
-
BUF
5h 14m
1 stop
Delta Logo
6:00 am - 12:40 pm
BUF
-
EYW
6h 40m
1 stop
$329Delta
Fri, May 1 - Sun, May 3
United Airlines Logo
2:24 pm - 11:42 pm
EYW
-
BUF
9h 18m
2 stops
United Airlines Logo
6:09 am - 5:39 pm
BUF
-
EYW
11h 30m
2 stops
$389United Airlines
Thu, Mar 26 - Mon, Mar 30
United Airlines Logo
2:26 pm - 10:31 pm
EYW
-
BUF
8h 05m
1 stop
United Airlines Logo
7:00 am - 3:07 pm
BUF
-
EYW
8h 07m
1 stop
$431United Airlines
Fri, May 29 - Tue, Jun 2
American Airlines Logo
4:40 pm - 10:36 pm
EYW
-
BUF
5h 56m
1 stop
American Airlines Logo
1:46 pm - 6:47 pm
BUF
-
EYW
5h 01m
1 stop
$439American Airlines
Wed, Jul 8 - Sat, Jul 11

American Airlines flights from Key West to Buffalo

Our best American Airlines deals on Key West to Buffalo flight tickets
American Airlines
May 1
EYW5:03 pmKey West
6h 56m
1 stop
BUF11:59 pmBuffalo
May 3
BUF1:45 pmBuffalo
9h 13m
2 stops
EYW10:58 pmKey West
$314
American Airlines
May 1
EYW3:58 pmKey West
7h 49m
2 stops
BUF11:47 pmBuffalo
May 3
BUF1:45 pmBuffalo
9h 13m
2 stops
EYW10:58 pmKey West
$319
American Airlines
Jul 8
EYW4:40 pmKey West
5h 56m
1 stop
BUF10:36 pmBuffalo
Jul 11
BUF1:46 pmBuffalo
5h 01m
1 stop
EYW6:47 pmKey West
$439

United Airlines flights from Key West to Buffalo

Our best United Airlines deals on Key West to Buffalo flight tickets
United Airlines
Mar 26
EYW2:24 pmKey West
9h 18m
2 stops
BUF11:42 pmBuffalo
Mar 30
BUF6:09 amBuffalo
11h 30m
2 stops
EYW5:39 pmKey West
$389
United Airlines
May 29
EYW2:26 pmKey West
8h 05m
1 stop
BUF10:31 pmBuffalo
Jun 2
BUF7:00 amBuffalo
8h 07m
1 stop
EYW3:07 pmKey West
$431
United Airlines
May 29
EYW2:26 pmKey West
8h 05m
1 stop
BUF10:31 pmBuffalo
Jun 2
BUF7:00 amBuffalo
8h 07m
1 stop
EYW3:07 pmKey West
$476

momondo 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, momondo users made 832,500 searches. Data last updated March 12, 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

Price

Cheapest round-trip

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 3/26

4:22 pm-6:46 pm

1 stop26h 24m

Buffalo

Mon 3/30

7:41 pm-12:21 pm

1 stop16h 40m

$296

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 5/1

6:23 pm-11:37 pm

1 stop5h 14m

Buffalo

Sun 5/3

6:00 am-12:40 pm

1 stop6h 40m

$309

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 5/1

5:03 pm-11:59 pm

1 stop6h 56m

Buffalo

Sun 5/3

1:45 pm-10:58 pm

2 stops9h 13m

$314

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 3/26

4:22 pm-6:46 pm

1 stop26h 24m

Buffalo

Mon 3/30

1:00 pm-12:21 pm

2 stops23h 21m

$315

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 5/1

3:58 pm-11:47 pm

2 stops7h 49m

Buffalo

Sun 5/3

1:45 pm-10:58 pm

2 stops9h 13m

$319

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 5/1

1:06 pm-10:49 am

1 stop21h 43m

Buffalo

Sun 5/3

8:08 pm-9:09 am

2 stops13h 01m

$326

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 5/1

6:23 pm-11:37 pm

1 stop5h 14m

Buffalo

Sun 5/3

6:00 am-12:40 pm

1 stop6h 40m

$329

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 3/26

2:24 pm-11:42 pm

2 stops9h 18m

Buffalo

Mon 3/30

6:09 am-5:39 pm

2 stops11h 30m

$389

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 5/29

2:26 pm-10:31 pm

1 stop8h 05m

Buffalo

Tue 6/2

7:00 am-3:07 pm

1 stop8h 07m

$431
Quickest round-trip

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Wed 7/8

4:40 pm-10:36 pm

1 stop5h 56m

Buffalo

Sat 7/11

1:46 pm-6:47 pm

1 stop5h 01m

$439

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

When to book flights from Key West to Buffalo

Are you open to changing your travel dates? Check out the ideal times to fly from Key West to Buffalo according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Key West to Buffalo (EYW to BUF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Key West to Buffalo

Fastest flight time

21h 43m

Direct flights

None
The fastest flight from Key West to Buffalo takes 21h 43m
There are no direct flights from Key West to Buffalo. There are no popular flight routes from Key West to Buffalo.
Search flight deals

  • How far is Key West to Buffalo by plane?

    Buffalo is 1276.6 mi away from Key West. A reasonable flight in good conditions will take 21h 43m.

  • When did momondo last update prices for flights from Key West Airport to Buffalo Airport?

    Prices for flights from Key West Airport to Buffalo Airport refresh daily.

  • How old do you have to be to fly from Key West Airport to Buffalo Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Key West Airport to Buffalo Airport.

  • What documentation or ID do you need to fly to Buffalo Airport?

    The travel and health documents you'll need for your trip to Buffalo Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buffalo Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Key West to Buffalo?

    Price Alerts will notify you by email when the price for flights to Buffalo from Key West decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Key West to Buffalo with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Batavia
Cheektowaga
Amherst
Grand Island
Tonawanda
Williamsville
Orchard Park
Lockport
West Seneca
Bowmansville
East Aurora
Eden
Angola

Why use momondo?

Why should I use momondo to find a flight deal from Key West to Buffalo?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Key West to Buffalo. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Key West to Buffalo with flexible booking policies on momondo?

All flight searches from Key West to Buffalo on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Key West to Buffalo?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Key West to Buffalo.

I’m not ready to book a flight from Key West to Buffalo right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Key West to Buffalo now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Buffalo and let you know when they change.

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