EYW - LON

$330 Find Cheap Flights from Key West to London

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 London departing on 10/10. 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 London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Key West to London, 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 London, 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
$863
American Airlines
Tue 8/25Thu 9/3
EYW - LHR • 1 stop
Cheapest one-way
$330
United Airlines
Sat 10/10
EYW - LHR • 2 stops
Top airlines
Cheapest • from $863 (round-trip)
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Key West and London. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $723 (round-trip)
Shortest trip • 11h 16m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Key West to London (EYW-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Key West to London 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 London

Tue, Aug 25 - Thu, Sep 3
American Airlines Logo
4:50 pm - 12:50 pm
EYW
-
LHR
15h 00m
1 stop
American Airlines Logo
8:15 am - 6:44 pm
LHR
-
EYW
15h 29m
2 stops
$863American Airlines
Tue, Aug 18 - Tue, Sep 1
Delta Logo
1:57 pm - 6:25 am
EYW
-
LHR
11h 28m
1 stop
Delta Logo
6:30 am - 7:45 pm
LHR
-
EYW
18h 15m
2 stops
$871Delta
Tue, Aug 18 - Tue, Sep 1
Delta Logo
7:40 am - 7:10 am
EYW
-
LHR
18h 30m
2 stops
Delta Logo
6:30 am - 7:45 pm
LHR
-
EYW
18h 15m
2 stops
$875Delta
Tue, Aug 18 - Tue, Sep 1
Delta Logo
7:40 am - 6:45 am
EYW
-
LHR
18h 05m
2 stops
Delta Logo
6:30 am - 7:45 pm
LHR
-
EYW
18h 15m
2 stops
$876Delta
Tue, Aug 18 - Tue, Sep 1
KLM Logo
7:40 am - 6:25 am
EYW
-
LHR
17h 45m
1 stop
KLM Logo
9:20 am - 7:45 pm
LHR
-
EYW
15h 25m
1 stop
$900KLM
Sat, Oct 10 - Mon, Oct 12
British Airways Logo
2:01 pm - 9:00 am
EYW
-
LHR
13h 59m
1 stop
British Airways Logo
9:55 am - 6:24 pm
LHR
-
EYW
13h 29m
1 stop
$995British Airways
Sat, Oct 10 - Mon, Oct 12
United Airlines Logo
2:20 pm - 10:15 am
EYW
-
LHR
14h 55m
2 stops
United Airlines Logo
7:45 am - 1:34 pm
LHR
-
EYW
34h 49m
1 stop
$1,002United Airlines
Sat, Oct 10 - Mon, Oct 12
Lufthansa Logo
4:05 pm - 9:20 pm
EYW
-
LHR
24h 15m
2 stops
Lufthansa Logo
4:25 pm - 1:34 pm
LHR
-
EYW
50h 09m
2 stops
$1,076Lufthansa
Mon, Jul 13 - Wed, Jul 22
United Airlines Logo
2:26 pm - 8:20 am
EYW
-
LHR
12h 54m
1 stop
United Airlines Logo
8:30 am - 3:19 pm
LHR
-
EYW
35h 49m
2 stops
$1,079United Airlines
Mon, Jul 13 - Wed, Jul 22
United Airlines Logo
2:26 pm - 11:55 am
EYW
-
LHR
16h 29m
2 stops
United Airlines Logo
8:30 am - 3:19 pm
LHR
-
EYW
35h 49m
2 stops
$1,084United Airlines
Booking Insights

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

Get data-powered insights and trends into flights from Key West to London 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 London?

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 London were found on American Airlines ($863) and Delta ($871).

Good to know

Cheapest flight$330
Flight from Key West to London Heathrow Airport

When to book flights from Key West to London

Are your dates flexible? Find out the best times to travel from Key West to London 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 London

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

    In the last 3 days, the lowest price for a flight from Key West to London was $330 for a one-way ticket and $863 for a round-trip.

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

    Yes

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

    When flying out of Key West you will be using Key West. You will be landing at one of these airports: London Gatwick or London Heathrow.

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

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

  • Which is the best airline for flights from Key West to London, American Airlines or British Airways?

    The two airlines most popular with KAYAK users for flights from Key West to London are American Airlines and British Airways. With an average price for the route of $777 and an overall rating of 7.1, American Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $781 and an overall rating of 6.7.

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

    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 London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London 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 London?

    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 London with an airline and back to Key West with another airline.

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

    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 London 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 London

 
See real verified KAYAK customer reviews for airlines flying from Key West to London. 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 London? 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.
7.1
American AirlinesOverall score based on 11662 reviews
6.4Food
7.2Comfort
7.5Boarding
7.9Crew
6.9Entertainment
Airline reviews

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

8.0 ExcellentT, May 2026
SFO - LHR
Read more American Airlines reviews

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

Flight was delayed an no one cares, or try to help passengers to get the conexión.

Our flight was cancelled while we are on our way to the airport. So, no notice. We were rescheduled to another airline with a 2 hour later takeoff and so arrived at our destination on time. We pre-paid American Airlines $190 to upgrade our seats. No refund. So no use for AA or Kayak.

Terrible, horrible, disappointing- without telling us they changed planes and moved and separated our seats to opposite sides - said they changed seats putting us together - got to airport to find no, they did not - we sat opposing sides of plane - food overly salty to inedible, never saw stewardess but once - it was terrible

The business class layout of chairs was weired. You are sitting directly across stranger.,

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

I have never been assaulted they way I was today in Charlotte - shame on American

Tv screens and movie selection v good. Friendly staff. They were really worried about max capacity and room for carryons. That is never fun but i had no problem finding space when I boarded.

My flight to London from Philadelphia was cancelled due to weather.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Flight was good but temp in the cabin was cold.

I like American Airlines and their safety record. They provide quality service and a feel safe enough to prefer American Airlines over other carriers even if I have to pay a little more.

Cancelled flight and re booked seats were a downgrade. British Airways said the upgrade was t available but when I checked it was but then they wouldn’t make it right

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

The whole experience was excellent, O can say out from Miami the best airline to travel with for any European destination. Since the ground staff to the inflight crew attention was great, service on board 10 of 10. Finally the 380 is very confortable and nice to travel.

All crew except 1 were excellent. When I asked assistance with business class seat conversion to a bed (not being familiar as never used before but have numerous times with other airlines) crew member helped very reluctantly. I should have told her that business class seat conversion is totally different in each airline such as Delta, New Zealand Air and United. Sorry it was my 1st time with America Airlines. Now I know, I won't bother asking assistance in future.

The seats in Premier Economy were very comfortable. The food was better than average. The way British Airways handled our seating was atrocious.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Overall ok. Best part has always been the sundae dessert.

I’ve never been on a trans-Atlantic (or Pacific) flight where the seats don’t recline—not even a little. I asked my seat mate when BA starting doing this and he said “Oh, a few years ago.” I couldn’t sleep, with my head falling forward waking me continuously, and came off the plane incredibly stiff. I booked a Premium Economy seat to get a more comfortable seat, which was worse than most basic Economy seats I’ve ever booked.

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

Information on your arrival and departure airports