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

United Airlines and Delta are the most popular carriers operating from Key West to Buffalo

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?

As of August 2025, there are 2 operators available to choose from 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.

$239 Cheap Flights from Key West to Buffalo (EYW-BUF) in 2025

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Find the cheapest flights from Key West to Buffalo (EYW-BUF)

Round-trip

One-way

Cheap round-trip flights

6:00 pm - 11:55 pmEYW-BUF

5h 55m1 stop

6:00 am - 11:03 amBUF-EYW

5h 03m1 stop

$269Delta

Find Deal

Thu, Dec 18 - Tue, Jan 6

1:10 pm - 11:02 pmEYW-BUF

9h 52m2 stops

12:20 pm - 5:08 pmBUF-EYW

4h 48m1 stop

$274Delta

Find Deal

Wed, Dec 24 - Sun, Jan 4

1:10 pm - 11:02 pmEYW-BUF

9h 52m2 stops

10:20 am - 7:44 pmBUF-EYW

9h 24m2 stops

$279Delta

Find Deal

Wed, Dec 24 - Wed, Jan 7

6:00 pm - 11:55 pmEYW-BUF

5h 55m1 stop

12:20 pm - 5:08 pmBUF-EYW

4h 48m1 stop

$294Delta

Find Deal

Fri, Dec 19 - Sun, Jan 4

4:53 pm - 12:08 amEYW-BUF

7h 15m1 stop

12:57 pm - 5:51 pmBUF-EYW

4h 54m1 stop

$342American Airlines

Find Deal

Sat, Nov 15 - Tue, Nov 18

12:40 pm - 10:52 pmEYW-BUF

10h 12m2 stops

5:34 am - 1:55 pmBUF-EYW

8h 21m1 stop

$347American Airlines

Find Deal

Sat, Nov 15 - Tue, Nov 18

7:35 pm - 12:13 amEYW-BUF

4h 38m1 stop

6:13 am - 11:24 amBUF-EYW

5h 11m1 stop

$349American Airlines

Find Deal

Wed, Dec 24 - Mon, Jan 5

12:40 pm - 10:52 pmEYW-BUF

10h 12m2 stops

12:57 pm - 7:29 pmBUF-EYW

6h 32m2 stops

$352American Airlines

Find Deal

Sat, Nov 15 - Tue, Nov 18

12:22 pm - 9:17 pmEYW-BUF

8h 55m1 stop

6:30 am - 3:14 pmBUF-EYW

8h 44m1 stop

$521United Airlines

Find Deal

Sun, Dec 21 - Sat, Jan 3

3:09 pm - 2:14 pmEYW-BUF

23h 05m2 stops

6:30 am - 3:14 pmBUF-EYW

8h 44m1 stop

$567United Airlines

Find Deal

Sun, Dec 21 - Sat, Jan 3

Delta flights from Key West to Buffalo

Our best Delta deals on Key West to Buffalo flight tickets

Delta

Dec 18

EYW6:00 pmKey West

5h 55m

1 stop

BUF11:55 pmBuffalo

Jan 6

BUF6:00 amBuffalo

5h 03m

1 stop

EYW11:03 amKey West

$269

Find similar

Delta

Dec 24

EYW1:10 pmKey West

9h 52m

2 stops

BUF11:02 pmBuffalo

Jan 4

BUF12:20 pmBuffalo

4h 48m

1 stop

EYW5:08 pmKey West

$274

Find similar

Delta

Dec 24

EYW1:10 pmKey West

9h 52m

2 stops

BUF11:02 pmBuffalo

Jan 7

BUF10:20 amBuffalo

9h 24m

2 stops

EYW7:44 pmKey West

$279

Find similar

American Airlines flights from Key West to Buffalo

Our best American Airlines deals on Key West to Buffalo flight tickets

American Airlines

Nov 15

EYW4:53 pmKey West

7h 15m

1 stop

BUF12:08 amBuffalo

Nov 18

BUF12:57 pmBuffalo

4h 54m

1 stop

EYW5:51 pmKey West

$342

Find similar

American Airlines

Nov 15

EYW12:40 pmKey West

10h 12m

2 stops

BUF10:52 pmBuffalo

Nov 18

BUF5:34 amBuffalo

8h 21m

1 stop

EYW1:55 pmKey West

$347

Find similar

American Airlines

Dec 24

EYW7:35 pmKey West

4h 38m

1 stop

BUF12:13 amBuffalo

Jan 5

BUF6:13 amBuffalo

5h 11m

1 stop

EYW11:24 amKey West

$349

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 12/18

6:00 pm-11:55 pm

1 stop5h 55m

Buffalo

Tue 1/6

6:00 am-11:03 am

1 stop5h 03m

$269

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Wed 12/24

1:10 pm-11:02 pm

2 stops9h 52m

Buffalo

Sun 1/4

12:20 pm-5:08 pm

1 stop4h 48m

$274

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Wed 12/24

1:10 pm-11:02 pm

2 stops9h 52m

Buffalo

Wed 1/7

10:20 am-7:44 pm

2 stops9h 24m

$279

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 12/19

6:00 pm-11:55 pm

1 stop5h 55m

Buffalo

Sun 1/4

12:20 pm-5:08 pm

1 stop4h 48m

$294

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sat 11/15

4:53 pm-12:08 am

1 stop7h 15m

Buffalo

Tue 11/18

12:57 pm-5:51 pm

1 stop4h 54m

$342

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sat 11/15

12:40 pm-10:52 pm

2 stops10h 12m

Buffalo

Tue 11/18

5:34 am-1:55 pm

1 stop8h 21m

$347

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Wed 12/24

7:35 pm-12:13 am

1 stop4h 38m

Buffalo

Mon 1/5

6:13 am-11:24 am

1 stop5h 11m

$349

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sat 11/15

12:40 pm-10:52 pm

2 stops10h 12m

Buffalo

Tue 11/18

12:57 pm-7:29 pm

2 stops6h 32m

$352

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sun 12/21

12:22 pm-9:17 pm

1 stop8h 55m

Buffalo

Sat 1/3

6:30 am-3:14 pm

1 stop8h 44m

$521

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Sun 12/21

3:09 pm-2:14 pm

2 stops23h 05m

Buffalo

Sat 1/3

6:30 am-3:14 pm

1 stop8h 44m

$567

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest day to depart on your flight to Buffalo?

Our data shows that Friday is the least expensive day to fly to Buffalo. Tickets to fly out on this day can be as low as $352. Flights from Key West to Buffalo on a Sunday will generally be more expensive and average around $755. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Buffalo?

At noon is the cheapest time of day to fly from Key West to Buffalo when you can find flight prices for as low as $388. Flying to Buffalo at noon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Buffalo, so prices are often more expensive at around $554 per ticket.

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

Best Price Found	$239
Fastest flight time	4h 33m
Direct flights	None
Airports in Buffalo	1 airport

The best one-way flight to Buffalo from Key West in the past 72 hours is $239. The best round-trip flight deal from Key West to Buffalo found on momondo in the last 72 hours is $269.

The fastest flight from Key West to Buffalo takes 4h 33m

There are no direct flights from Key West to Buffalo. Popular non-direct route for this connection is Key West Airport - Buffalo Airport.

There is 1 airport near Buffalo: Buffalo (BUF)

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 4h 33m.
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?
As of August 2025, there are 2 operators available to choose from 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?
momondo data reveals that the most frequently booked airline on the route from Key West to Buffalo is American Airlines, representing 50% of all bookings. The subsequent popular airline is Delta at 50%.

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
American Airlines	PriceFrom $208	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights
Delta	PriceFrom $259	Free Cancellation	Rating 8.0 7,981 reviews		Search Delta flights

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Grand Island

Lockport

Orchard Park

West Seneca

East Aurora

Bowmansville

Eden

Angola

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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.