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Cheap flights from Key West to Buffalo from $150

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 10/6. 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

Discover deals from 900+ travel sites with momondo.

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
11:04 am - 10:29 am
EYW
-
BUF
23h 25m
2 stops
Multiple Airlines Logo
6:54 pm - 11:25 am
BUF
-
EYW
16h 31m
1 stop
$262Multiple Airlines
Thu, Aug 20 - Wed, Aug 26
Multiple Airlines Logo
12:07 pm - 6:09 pm
EYW
-
BUF
6h 02m
1 stop
Multiple Airlines Logo
11:36 am - 11:06 am
BUF
-
EYW
23h 30m
2 stops
$324Multiple Airlines
Fri, Aug 21 - Tue, Aug 25
Delta Logo
6:10 pm - 11:59 pm
EYW
-
BUF
5h 49m
1 stop
Delta Logo
12:21 pm - 8:01 pm
BUF
-
EYW
7h 40m
1 stop
$333Delta
Wed, Oct 14 - Tue, Oct 20
American Airlines Logo
5:34 pm - 11:32 pm
EYW
-
BUF
5h 58m
1 stop
American Airlines Logo
7:00 am - 1:54 pm
BUF
-
EYW
6h 54m
1 stop
$333American Airlines
Tue, Oct 13 - Tue, Oct 20
American Airlines Logo
12:48 pm - 7:50 pm
EYW
-
BUF
7h 02m
1 stop
American Airlines Logo
7:13 am - 2:36 pm
BUF
-
EYW
7h 23m
1 stop
$333American Airlines
Wed, Oct 14 - Tue, Oct 20
Multiple Airlines Logo
12:07 pm - 6:09 pm
EYW
-
BUF
6h 02m
1 stop
Multiple Airlines Logo
11:36 am - 11:06 am
BUF
-
EYW
23h 30m
2 stops
$350Multiple Airlines
Fri, Aug 21 - Tue, Aug 25
Delta Logo
6:15 pm - 11:59 pm
EYW
-
BUF
5h 44m
1 stop
Delta Logo
12:16 pm - 7:57 pm
BUF
-
EYW
7h 41m
1 stop
$357Delta
Thu, Aug 20 - Wed, Aug 26
Delta Logo
6:15 pm - 11:59 pm
EYW
-
BUF
5h 44m
1 stop
Delta Logo
6:05 am - 10:50 am
BUF
-
EYW
4h 45m
1 stop
$357Delta
Thu, Aug 20 - Tue, Aug 25
Delta Logo
6:15 pm - 11:59 pm
EYW
-
BUF
5h 44m
1 stop
Delta Logo
6:05 am - 10:50 am
BUF
-
EYW
4h 45m
1 stop
$357Delta
Thu, Aug 20 - Tue, Aug 25
American Airlines Logo
1:50 pm - 9:55 pm
EYW
-
BUF
8h 05m
1 stop
American Airlines Logo
5:00 am - 11:36 am
BUF
-
EYW
6h 36m
1 stop
$357American Airlines
Fri, Aug 21 - Tue, Aug 25

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American Airlines flights from Key West to Buffalo

Our best American Airlines deals on Key West to Buffalo flight tickets
American Airlines
Aug 19
EYW1:50 pmKey West
8h 05m
1 stop
BUF9:55 pmBuffalo
Aug 24
BUF6:00 amBuffalo
7h 45m
1 stop
EYW1:45 pmKey West
$381
American Airlines
Aug 14
EYW1:50 pmKey West
8h 05m
1 stop
BUF9:55 pmBuffalo
Aug 19
BUF6:00 amBuffalo
7h 45m
1 stop
EYW1:45 pmKey West
$419
American Airlines
Oct 13
EYW1:43 pmKey West
9h 49m
2 stops
BUF11:32 pmBuffalo
Oct 20
BUF7:00 amBuffalo
6h 54m
1 stop
EYW1:54 pmKey West
$455

Delta flights from Key West to Buffalo

Our best Delta deals on Key West to Buffalo flight tickets
Delta
Oct 14
EYW6:10 pmKey West
5h 49m
1 stop
BUF11:59 pmBuffalo
Oct 20
BUF12:21 pmBuffalo
7h 40m
1 stop
EYW8:01 pmKey West
$333
Delta
Aug 20
EYW6:15 pmKey West
5h 44m
1 stop
BUF11:59 pmBuffalo
Aug 25
BUF6:05 amBuffalo
4h 45m
1 stop
EYW10:50 amKey West
$357
Delta
Aug 14
EYW6:15 pmKey West
5h 44m
1 stop
BUF11:59 pmBuffalo
Aug 19
BUF6:05 amBuffalo
4h 45m
1 stop
EYW10:50 amKey West
$480

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 July 29, 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 8/20

11:04 am-10:29 am

2 stops23h 25m

Buffalo

Wed 8/26

6:54 pm-11:25 am

1 stop16h 31m

$262

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 8/21

12:07 pm-6:09 pm

1 stop6h 02m

Buffalo

Tue 8/25

11:36 am-11:06 am

2 stops23h 30m

$324

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Wed 10/14

6:10 pm-11:59 pm

1 stop5h 49m

Buffalo

Tue 10/20

12:21 pm-8:01 pm

1 stop7h 40m

$333

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Tue 10/13

5:34 pm-11:32 pm

1 stop5h 58m

Buffalo

Tue 10/20

7:00 am-1:54 pm

1 stop6h 54m

$333

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Wed 10/14

12:48 pm-7:50 pm

1 stop7h 02m

Buffalo

Tue 10/20

7:13 am-2:36 pm

1 stop7h 23m

$333

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 8/21

12:07 pm-6:09 pm

1 stop6h 02m

Buffalo

Tue 8/25

11:36 am-11:06 am

2 stops23h 30m

$350

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 8/20

6:15 pm-11:59 pm

1 stop5h 44m

Buffalo

Wed 8/26

12:16 pm-7:57 pm

1 stop7h 41m

$357
Quickest round-trip

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 8/20

6:15 pm-11:59 pm

1 stop5h 44m

Buffalo

Tue 8/25

6:05 am-10:50 am

1 stop4h 45m

$357

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 8/20

6:15 pm-11:59 pm

1 stop5h 44m

Buffalo

Tue 8/25

6:05 am-10:50 am

1 stop4h 45m

$357

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 8/21

1:50 pm-9:55 pm

1 stop8h 05m

Buffalo

Tue 8/25

5:00 am-11:36 am

1 stop6h 36m

$357

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Buffalo from

How to get the cheapest flight ticket from Key West to Buffalo

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Key West to Buffalo?

Delta is the most popular carrier operating from Key West to Buffalo

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

5h 49m

Direct flights

None
The fastest flight from Key West to Buffalo takes 5h 49m
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 5h 49m.

  • 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 $322Free CancellationRating
7.8
8,486 reviews
Search Delta flights

Traveling to a place near Buffalo?

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