EYW - LON

$635 Find Cheap Flights from Key West to London

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Key West to London departing on 8/19. 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

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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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 19 - Thu, Aug 28
British Airways Logo
1:29 pm - 6:55 amEYW-LHR
12h 26m1 stop
British Airways Logo
7:30 pm - 5:23 pmLHR-EYW
50h 53m2 stops
$635British Airways
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Tue, Aug 19 - Thu, Aug 28
British Airways Logo
1:29 pm - 6:55 amEYW-LHR
12h 26m1 stop
British Airways Logo
5:15 pm - 5:23 pmLHR-EYW
53h 08m2 stops
$636British Airways
Find Deal
Tue, Aug 19 - Thu, Aug 28
British Airways Logo
1:29 pm - 9:25 amEYW-LHR
14h 56m1 stop
British Airways Logo
9:55 am - 7:07 pmLHR-EYW
14h 12m1 stop
$644British Airways
Find Deal
Tue, Aug 19 - Thu, Aug 28
British Airways Logo
1:29 pm - 6:55 amEYW-LHR
12h 26m1 stop
British Airways Logo
9:55 am - 7:07 pmLHR-EYW
14h 12m1 stop
$645British Airways
Find Deal
Tue, Aug 19 - Thu, Aug 28
British Airways Logo
1:29 pm - 6:55 amEYW-LHR
12h 26m1 stop
British Airways Logo
1:40 pm - 7:07 pmLHR-EYW
34h 27m1 stop
$649British Airways
Find Deal
Tue, Aug 19 - Thu, Aug 28
American Airlines Logo
1:13 pm - 7:40 amEYW-LHR
13h 27m1 stop
American Airlines Logo
9:15 am - 7:07 pmLHR-EYW
14h 52m2 stops
$655American Airlines
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Tue, Aug 19 - Thu, Aug 28
Delta Logo
11:52 am - 7:15 amEYW-LHR
14h 23m2 stops
Delta Logo
6:15 am - 8:12 pmLHR-EYW
18h 57m2 stops
$692Delta
Find Deal
Tue, Aug 19 - Thu, Aug 28
Delta Logo
11:52 am - 8:50 amEYW-LHR
15h 58m2 stops
Delta Logo
8:10 pm - 10:56 amLHR-EYW
19h 46m2 stops
$699Delta
Find Deal
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 British Airways ($635) and American Airlines ($655).

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Good to know

Cheapest flight$635
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 $635 for a round-trip ticket.

  • 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 airline alliances offer flights from Key West to London?

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

  • 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 airline 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.
7.2
American AirlinesOverall score based on 10000 reviews
6.5Food
8.0Crew
7.2Comfort
6.9Entertainment
7.5Boarding
Airline reviews

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

10.0 ExcellentBrian, Jun 2025SAN - LHR
Read more American Airlines reviews

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

More choices on menu. Seemed only thing offered was Scottish, and while that’s good for the Scot’s it doesn’t help the Americans who don’t like that food. And I really hate it when, during sleep time the attendants have a very loud conversation right over you. Lastly, I paid 5000 dollars for business class, and having to pay more to choose my seat early is really an insult. Seems greedy

The chicken adobo was a little too spicy but good otherwise. My personal opinion. Movie selection could be improved, too many horror movies. Could add a few more chick flicks! The flight was bumpy at times. We arrived a little early too! Flight attendants friendly.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

really bad they refused to check in luggages that I had purchased, even showing them the transaction receipt from british airways app the staff in miami was MEDIOCRE

Crew was great and responsive. Entertainment quit working with about 4 hours remaining on the flight. My seat cushion was broken.

Not very good , the stewardess were unfriendly and they don't like to be bothered. Cos was a night flight and they need to sleep.

British Airways staff are very polite and willing to help.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

There were several issues with this flight. I have flown quite often internationally and I was surprised by the lack of presence of attendants other than meal and drink times. The food was not best but I feel that is the norm. We also had to get off the plane once in London via stairs and bus to the terminal. Anyone who had another flight had to then get another bus to another terminal. This causes me to miss my flight and have to rebook.

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

Information on your arrival and departure airports

Key West (EYW)

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