EYW - BUF

$192 Find Cheap Flights from Key West to Buffalo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Key West to Buffalo departing on 3/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Buffalo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Key West to Buffalo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Key West to Buffalo, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$339
American Airlines
Fri 2/13Tue 2/17
EYW - BUF • 1 stop
Cheapest one-way
$192
Typical prices: $422-$534
Multiple Airlines
Sun 3/15
EYW - BUF • 2 stops
Top airlines
American Airlines
Cheapest • from $339 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Buffalo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Key West to Buffalo (EYW-BUF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Key West to Buffalo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Key West to Buffalo

Fri, Feb 13 - Tue, Feb 17
American Airlines Logo
5:04 pm - 10:49 pm
EYW
-
BUF
5h 45m
1 stop
American Airlines Logo
5:24 am - 11:26 am
BUF
-
EYW
6h 02m
1 stop
$339American Airlines
Fri, Feb 13 - Tue, Feb 17
American Airlines Logo
4:40 pm - 11:50 pm
EYW
-
BUF
7h 10m
1 stop
American Airlines Logo
7:00 am - 4:49 pm
BUF
-
EYW
9h 49m
2 stops
$344American Airlines
Fri, Feb 13 - Tue, Feb 17
American Airlines Logo
2:06 pm - 10:49 pm
EYW
-
BUF
8h 43m
2 stops
American Airlines Logo
7:00 am - 4:49 pm
BUF
-
EYW
9h 49m
2 stops
$349American Airlines
Wed, Mar 18 - Mon, Mar 30
American Airlines Logo
4:40 pm - 11:50 pm
EYW
-
BUF
7h 10m
1 stop
American Airlines Logo
5:30 am - 1:45 pm
BUF
-
EYW
8h 15m
1 stop
$364American Airlines
Wed, Mar 18 - Mon, Mar 30
American Airlines Logo
7:45 am - 3:54 pm
EYW
-
BUF
8h 09m
2 stops
American Airlines Logo
5:30 am - 1:45 pm
BUF
-
EYW
8h 15m
1 stop
$369American Airlines
Thu, Feb 26 - Sun, Mar 1
United Airlines Logo
6:35 pm - 11:44 pm
EYW
-
BUF
5h 09m
1 stop
United Airlines Logo
6:07 am - 4:07 pm
BUF
-
EYW
10h 00m
1 stop
$383United Airlines
Thu, Feb 26 - Sun, Mar 1
United Airlines Logo
6:35 pm - 11:44 pm
EYW
-
BUF
5h 09m
1 stop
United Airlines Logo
6:07 am - 1:15 pm
BUF
-
EYW
31h 08m
2 stops
$388United Airlines
Wed, Mar 18 - Sun, Mar 29
Multiple Airlines Logo
11:51 am - 12:05 pm
EYW
-
BUF
24h 14m
2 stops
Multiple Airlines Logo
9:25 pm - 12:26 pm
BUF
-
EYW
15h 01m
1 stop
$438Multiple Airlines
Wed, Mar 18 - Sun, Mar 29
Multiple Airlines Logo
11:51 am - 10:49 am
EYW
-
BUF
22h 58m
1 stop
Multiple Airlines Logo
9:25 pm - 12:26 pm
BUF
-
EYW
15h 01m
1 stop
$444Multiple Airlines
Thu, Feb 26 - Sun, Mar 1
United Airlines Logo
2:15 pm - 11:44 pm
EYW
-
BUF
9h 29m
2 stops
United Airlines Logo
6:07 am - 1:15 pm
BUF
-
EYW
31h 08m
2 stops
$453United Airlines
Booking Insights

KAYAK's insights & trends for Key West to Buffalo flights

Get data-powered insights and trends into flights from Key West to Buffalo to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Key West to Buffalo?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Key West to Buffalo were found on American Airlines ($339) and United Airlines ($383).

Good to know

Cheapest flight$192
Flight from Key West to Buffalo

When to book flights from Key West to Buffalo

Are your dates flexible? Find out the best times to travel from Key West to Buffalo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Key West to Buffalo

  • What is the cheapest flight from Key West to Buffalo?

    In the last 3 days, the lowest price for a flight from Key West to Buffalo was $155 for a one-way ticket and $339 for a round-trip.

  • Do I need a passport to fly between Key West and Buffalo?

    A passport is not required to fly from Key West to Buffalo.

  • Which airports will I be using when flying from Key West to Buffalo?

    On your way to Buffalo, you’ll fly out from Key West. You’ll be landing at Buffalo.

  • Which aircraft models fly most regularly from Key West to Buffalo?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Key West to Buffalo?

    oneworld, and SkyTeam are the airline alliances operating flights between Key West and Buffalo, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Key West to Buffalo, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Key West to Buffalo are Delta and American Airlines. With an average price for the route of $318 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $415 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Key West to Buffalo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Key West to Buffalo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Key West to Buffalo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buffalo from Key West is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Key West to Buffalo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Buffalo with an airline and back to Key West with another airline. Booking your flights between Key West and BUF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Key West to Buffalo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Buffalo from Key West up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Key West to Buffalo

 
See real verified KAYAK customer reviews for airlines flying from Key West to Buffalo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Key West to Buffalo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8127 reviews
8.5Crew
7.9Comfort
7.8Entertainment
7.2Food
8.1Boarding
Airline reviews

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

4.0 OkayStephen, Jan 2026
LAS - JFK
Read more Delta reviews

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

The food is terrible. The staff is wonderful. Comfort is good.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

Delta made it easy, comfortable and timely. The crew was fantastic.

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

It was good. But the gate team made me check my carry on when there was plenty of space for my luggage on the plane. Otherwise our trip was fine.

Bags took over and hour to come out. Delays due to wind caused rebooking.

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

RIC Staff was not enough. Elderly passengers had to wait 30 minutes to deplane, so we could board and still had to walk as no chairs were provided. And, passenger in front of my seat assignment rammed seat against my legs entire flight time. Was mildly bruised and left thigh still sore.

Flight was cancelled 3 hrs AFTER etd. Thetefore Missed connection from JFK to New Zealand . No accommodation provided… This cost ne aporox 1000 USD in extra expenses and turned whst should have been a 24 hr trip ftom Boston - New Zealand into a VERY expensive , late 70+ hr nightmare … Complete nonsense!!!

Overall fine, but the delay was annoying and the reasons for the delay were not communicated. The crew on board were phenomenal!

Whenever a passenger purchase a ticket his advantage number should automatically to his information. It's not everyone remember the number. You request for your number and American airline agent say they will email it....and they never email anything and you loose your mileage just because you don't remember your number. It should automatically go your information and associate with your email account at all times

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Everything you need to know for your flight from Key West to Buffalo

Information on your arrival and departure airports