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Cheap flights from Key West to Buffalo from $120

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 6/18. 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
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
11:46 am - 10:39 am
EYW
-
BUF
22h 53m
2 stops
Multiple Airlines Logo
9:02 pm - 11:27 am
BUF
-
EYW
14h 25m
1 stop
$291Multiple Airlines
Wed, Aug 12 - Sun, Aug 16
Multiple Airlines Logo
4:12 pm - 1:55 pm
EYW
-
BUF
21h 43m
2 stops
Multiple Airlines Logo
9:02 pm - 2:37 pm
BUF
-
EYW
17h 35m
1 stop
$308Multiple Airlines
Thu, Jun 25 - Thu, Jul 2
Multiple Airlines Logo
2:48 pm - 10:40 am
EYW
-
BUF
19h 52m
2 stops
Multiple Airlines Logo
9:02 pm - 2:37 pm
BUF
-
EYW
17h 35m
1 stop
$311Multiple Airlines
Sat, Jun 27 - Thu, Jul 2
Multiple Airlines Logo
4:12 pm - 1:55 pm
EYW
-
BUF
21h 43m
2 stops
Multiple Airlines Logo
9:02 pm - 2:37 pm
BUF
-
EYW
17h 35m
1 stop
$313Multiple Airlines
Thu, Jun 25 - Sun, Jul 5
Multiple Airlines Logo
4:12 pm - 1:55 pm
EYW
-
BUF
21h 43m
2 stops
Multiple Airlines Logo
10:05 pm - 12:48 pm
BUF
-
EYW
14h 43m
1 stop
$317Multiple Airlines
Thu, Jun 25 - Sat, Jul 4
Multiple Airlines Logo
2:48 pm - 10:40 am
EYW
-
BUF
19h 52m
2 stops
Multiple Airlines Logo
10:05 pm - 12:48 pm
BUF
-
EYW
14h 43m
1 stop
$320Multiple Airlines
Sat, Jun 27 - Sat, Jul 4
Multiple Airlines Logo
12:05 pm - 6:46 pm
EYW
-
BUF
6h 41m
1 stop
Multiple Airlines Logo
2:49 pm - 11:25 am
BUF
-
EYW
20h 36m
2 stops
$324Multiple Airlines
Thu, May 14 - Wed, May 20
Delta Logo
11:59 am - 6:50 pm
EYW
-
BUF
6h 51m
1 stop
Delta Logo
6:00 am - 10:56 am
BUF
-
EYW
4h 56m
1 stop
$344Delta
Fri, Jun 26 - Sat, Jul 4
Multiple Airlines Logo
9:16 pm - 7:12 pm
EYW
-
BUF
21h 56m
1 stop
Multiple Airlines Logo
9:02 pm - 2:37 pm
BUF
-
EYW
17h 35m
1 stop
$347Multiple Airlines
Sun, Jun 28 - Thu, Jul 2
Multiple Airlines Logo
9:16 pm - 7:12 pm
EYW
-
BUF
21h 56m
1 stop
Multiple Airlines Logo
9:02 pm - 2:37 pm
BUF
-
EYW
17h 35m
1 stop
$352Multiple Airlines
Sun, Jun 28 - Sun, Jul 5

United Airlines flights from Key West to Buffalo

Our best United Airlines deals on Key West to Buffalo flight tickets
United Airlines
May 14
EYW2:49 pmKey West
8h 44m
1 stop
BUF11:33 pmBuffalo
May 19
BUF7:00 amBuffalo
8h 07m
1 stop
EYW3:07 pmKey West
$364
United Airlines
May 13
EYW2:49 pmKey West
8h 44m
1 stop
BUF11:33 pmBuffalo
May 19
BUF6:04 amBuffalo
9h 03m
2 stops
EYW3:07 pmKey West
$369
United Airlines
May 13
EYW2:49 pmKey West
9h 06m
2 stops
BUF11:55 pmBuffalo
May 19
BUF6:04 amBuffalo
9h 03m
2 stops
EYW3:07 pmKey West
$374

American Airlines flights from Key West to Buffalo

Our best American Airlines deals on Key West to Buffalo flight tickets
American Airlines
May 14
EYW3:58 pmKey West
7h 52m
2 stops
BUF11:50 pmBuffalo
May 19
BUF6:00 amBuffalo
10h 30m
2 stops
EYW4:30 pmKey West
$401
American Airlines
May 12
EYW6:45 amKey West
9h 57m
2 stops
BUF4:42 pmBuffalo
May 16
BUF1:45 pmBuffalo
9h 13m
2 stops
EYW10:58 pmKey West
$428
American Airlines
Aug 12
EYW1:50 pmKey West
8h 05m
1 stop
BUF9:55 pmBuffalo
Aug 16
BUF6:20 amBuffalo
5h 51m
1 stop
EYW12:11 pmKey West
$435

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 April 28, 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

Wed 8/12

11:46 am-10:39 am

2 stops22h 53m

Buffalo

Sun 8/16

9:02 pm-11:27 am

1 stop14h 25m

$291

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 6/25

4:12 pm-1:55 pm

2 stops21h 43m

Buffalo

Thu 7/2

9:02 pm-2:37 pm

1 stop17h 35m

$308

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sat 6/27

2:48 pm-10:40 am

2 stops19h 52m

Buffalo

Thu 7/2

9:02 pm-2:37 pm

1 stop17h 35m

$311

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 6/25

4:12 pm-1:55 pm

2 stops21h 43m

Buffalo

Sun 7/5

9:02 pm-2:37 pm

1 stop17h 35m

$313

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 6/25

4:12 pm-1:55 pm

2 stops21h 43m

Buffalo

Sat 7/4

10:05 pm-12:48 pm

1 stop14h 43m

$317

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sat 6/27

2:48 pm-10:40 am

2 stops19h 52m

Buffalo

Sat 7/4

10:05 pm-12:48 pm

1 stop14h 43m

$320

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 5/14

12:05 pm-6:46 pm

1 stop6h 41m

Buffalo

Wed 5/20

2:49 pm-11:25 am

2 stops20h 36m

$324
Quickest round-trip

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 6/26

11:59 am-6:50 pm

1 stop6h 51m

Buffalo

Sat 7/4

6:00 am-10:56 am

1 stop4h 56m

$344

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sun 6/28

9:16 pm-7:12 pm

1 stop21h 56m

Buffalo

Thu 7/2

9:02 pm-2:37 pm

1 stop17h 35m

$347

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sun 6/28

9:16 pm-7:12 pm

1 stop21h 56m

Buffalo

Sun 7/5

9:02 pm-2:37 pm

1 stop17h 35m

$352

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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

6h 51m

Direct flights

None
The fastest flight from Key West to Buffalo takes 6h 51m
There are no direct flights from Key West to Buffalo. There are no popular flight routes from Key West to Buffalo.
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Frequently asked questions about flying from Key West to Buffalo

  • 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 6h 51m.

  • 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 many operators does momondo search for flights from Key West Airport to Buffalo Airport?

  • 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.

  • What is the most popular airline from Key West to Buffalo?

Best airlines flying from Key West to Buffalo

Compare and see reviews for airlines that fly from Key West to Buffalo with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $318Free CancellationRating
7.9
8,469 reviews
Search Delta flights

Frequently asked questions about flying from Key West to Buffalo

  • 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
Tonawanda
Grand Island
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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