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

JetBlue and American Airlines 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 December 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.

$194 Cheap Flights from Key West to Buffalo in 2025/26

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Find the cheapest flights from Key West to Buffalo

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:25 pm - 10:31 pm

EYW

BUF

8h 06m1 stop

9:55 am - 4:22 pm

BUF

EYW

6h 27m1 stop

$369United Airlines

Thu, Jan 22 - Sun, Jan 25

2:25 pm - 10:31 pm

EYW

BUF

8h 06m1 stop

8:30 am - 3:17 pm

BUF

EYW

6h 47m1 stop

$384United Airlines

Thu, Jan 22 - Sun, Jan 25

2:25 pm - 10:31 pm

EYW

BUF

8h 06m1 stop

9:55 am - 4:22 pm

BUF

EYW

6h 27m1 stop

$419United Airlines

Thu, Jan 22 - Sun, Jan 25

2:25 pm - 2:14 pm

EYW

BUF

23h 49m2 stops

9:55 am - 4:22 pm

BUF

EYW

6h 27m1 stop

$448United Airlines

Thu, Jan 22 - Sun, Jan 25

2:25 pm - 8:29 pm

EYW

BUF

30h 04m3 stops

9:55 am - 4:22 pm

BUF

EYW

6h 27m1 stop

$510United Airlines

Thu, Jan 22 - Sun, Jan 25

1:10 pm - 8:40 pm

EYW

BUF

7h 30m1 stop

7:58 pm - 7:07 am

BUF

EYW

11h 09m1 stop

$530Multiple Airlines

Fri, Dec 26 - Tue, Dec 30

1:10 pm - 8:40 pm

EYW

BUF

7h 30m1 stop

6:32 pm - 8:15 am

BUF

EYW

37h 43m2 stops

$531Multiple Airlines

Fri, Dec 26 - Tue, Dec 30

2:25 pm - 10:31 pm

EYW

BUF

8h 06m1 stop

6:00 am - 4:22 pm

BUF

EYW

10h 22m2 stops

$628United Airlines

Thu, Jan 22 - Sun, Jan 25

1:46 pm - 11:59 pm

EYW

BUF

10h 13m2 stops

6:00 am - 3:57 pm

BUF

EYW

9h 57m2 stops

$779American Airlines

Fri, Dec 26 - Tue, Dec 30

United Airlines flights from Key West to Buffalo

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

United Airlines

Jan 22

EYW2:25 pmKey West

8h 06m

1 stop

BUF10:31 pmBuffalo

Jan 25

BUF9:55 amBuffalo

6h 27m

1 stop

EYW4:22 pmKey West

$369

Find similar

United Airlines

Jan 22

EYW2:25 pmKey West

8h 06m

1 stop

BUF10:31 pmBuffalo

Jan 25

BUF8:30 amBuffalo

6h 47m

1 stop

EYW3:17 pmKey West

$384

Find similar

United Airlines

Jan 22

EYW2:25 pmKey West

8h 06m

1 stop

BUF10:31 pmBuffalo

Jan 25

BUF8:30 amBuffalo

6h 47m

1 stop

EYW3:17 pmKey West

$394

Find similar

Fly from

Fly to

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

Thu 1/22

2:25 pm-10:31 pm

1 stop8h 06m

Buffalo

Sun 1/25

8:30 am-3:17 pm

1 stop6h 47m

$384

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

$419

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 1/22

2:25 pm-2:14 pm

2 stops23h 49m

Buffalo

Sun 1/25

9:55 am-4:22 pm

1 stop6h 27m

$448

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 1/22

2:25 pm-8:29 pm

3 stops30h 04m

Buffalo

Sun 1/25

9:55 am-4:22 pm

1 stop6h 27m

$510

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 12/26

1:10 pm-8:40 pm

1 stop7h 30m

Buffalo

Tue 12/30

7:58 pm-7:07 am

1 stop11h 09m

$530

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 12/26

1:10 pm-8:40 pm

1 stop7h 30m

Buffalo

Tue 12/30

6:32 pm-8:15 am

2 stops37h 43m

$531

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 1/22

2:25 pm-10:31 pm

1 stop8h 06m

Buffalo

Sun 1/25

6:00 am-4:22 pm

2 stops10h 22m

$628

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Fri 12/26

1:46 pm-11:59 pm

2 stops10h 13m

Buffalo

Tue 12/30

6:00 am-3:57 pm

2 stops9h 57m

$779

Key WestBuffalo

EYW - BUF

EYWBUF

Key West

Thu 12/25

1:12 pm-7:28 pm

1 stop6h 16m

$194

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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

Fastest flight time	7h 46m
Direct flights	None

The fastest flight from Key West to Buffalo takes 7h 46m

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 7h 46m.
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 December 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 Delta, representing 54% of all bookings. The subsequent popular airline is American Airlines at 46%.

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
Delta	PriceFrom $259	Free Cancellation	Rating 7.9 8,008 reviews		Search Delta flights
American Airlines	PriceFrom $268	Free Cancellation	Rating 7.2 11,050 reviews		Search American Airlines flights

Batavia

Cheektowaga

Amherst

Tonawanda

Grand Island

Williamsville

Orchard Park

Lockport

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?

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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.