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$778 Find cheap flights from Key West to London Heathrow Airport

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 8/14. 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
0 bags
Sat 6/29
Sat 7/6

Search hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
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
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Key West to London (EYW-LHR)

 
These are the cheapest deals for flights from Key West to London currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Key West to London

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Key West to London.

Recent one-way flight deals from Key West to London

Only flying one-way? Below are some of the best one-way flight deals from Key West to London found on KAYAK recently.

Recent last minute flight deals from Key West to London

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Key West to London.

Recent direct flight deals from Key West to London

The latest deals for direct flights from Key West to London so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Key West to London

Find recent round-trip train or bus tickets from Key West to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:30 am - 6:55 amEYW-LHR
14h 25m2 stops
7:55 pm - 12:04 pmLHR-EYW
21h 09m2 stops
$778American Airlines
Find Deal
Wed, Aug 14 - Mon, Aug 19
12:45 pm - 7:30 amEYW-LHR
13h 45m1 stop
3:15 pm - 1:57 pmLHR-EYW
27h 42m1 stop
$785American Airlines
Find Deal
Wed, Jul 31 - Fri, Aug 9
12:45 pm - 8:00 amEYW-LHR
14h 15m2 stops
3:15 pm - 1:57 pmLHR-EYW
27h 42m1 stop
$788American Airlines
Find Deal
Wed, Jul 31 - Fri, Aug 9
12:45 pm - 7:30 amEYW-LHR
13h 45m1 stop
12:15 pm - 12:04 pmLHR-EYW
28h 49m1 stop
$789American Airlines
Find Deal
Wed, Jul 31 - Fri, Aug 9
4:24 pm - 11:15 amEYW-LHR
13h 51m2 stops
7:55 pm - 1:57 pmLHR-EYW
23h 02m2 stops
$790American Airlines
Find Deal
Wed, Jul 31 - Fri, Aug 9
12:45 pm - 8:00 amEYW-LHR
14h 15m2 stops
3:15 pm - 1:57 pmLHR-EYW
27h 42m1 stop
$792American Airlines
Find Deal
Wed, Jul 31 - Fri, Aug 9
12:45 pm - 7:55 amEYW-LHR
14h 10m2 stops
7:55 pm - 12:04 pmLHR-EYW
21h 09m2 stops
$793American Airlines
Find Deal
Wed, Jul 31 - Fri, Aug 9
3:35 pm - 10:50 amEYW-LHR
14h 15m1 stop
2:10 pm - 6:58 pmLHR-EYW
33h 48m1 stop
$808British Airways
Find Deal
Wed, Aug 14 - Mon, Aug 19
7:29 pm - 9:25 amEYW-LHR
32h 56m1 stop
2:10 pm - 7:00 pmLHR-EYW
33h 50m1 stop
$958British Airways
Find Deal
Sat, Jun 15 - Thu, Jul 25
7:23 am - 6:45 amEYW-LHR
18h 22m2 stops
5:50 pm - 1:35 pmLHR-EYW
24h 45m2 stops
$984Delta
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Wed, Jul 31 - Sat, Aug 10
2:40 pm - 3:35 pmEYW-LHR
43h 55m2 stops
$2,546
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Sat, Sep 7
6:05 pm - 1:15 pmEYW-LHR
14h 10m1 stop
$3,657KLM
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Sat, Sep 7
7:31 pm - 7:05 amEYW-LHR
30h 34m1 stop
$4,942British Airways
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Sat, Sep 7
5:13 pm - 11:15 amEYW-LHR
13h 02m2 stops
$7,336American Airlines
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Sat, Sep 7
2:40 pm - 7:05 amEYW-LHR
35h 25m3 stops
$15,582
Find Deal
Sat, Sep 7
11:42 am - 6:55 amEYW-LHR
14h 13m2 stops
9:15 am - 6:59 pmLHR-EYW
14h 44m2 stops
$793American Airlines
Find Deal
Tue, Jun 4 - Wed, Jun 19
11:42 am - 6:55 amEYW-LHR
14h 13m2 stops
10:30 am - 6:59 pmLHR-EYW
13h 29m1 stop
$794American Airlines
Find Deal
Tue, Jun 4 - Thu, Jun 20
2:29 pm - 7:45 amEYW-LHR
12h 16m1 stop
10:30 am - 6:59 pmLHR-EYW
13h 29m1 stop
$854American Airlines
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Tue, Jun 4 - Thu, Jun 20
11:42 am - 6:55 amEYW-LHR
14h 13m2 stops
7:55 pm - 2:06 pmLHR-EYW
23h 11m2 stops
$859American Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 25
11:42 am - 6:55 amEYW-LHR
14h 13m2 stops
9:15 am - 6:59 pmLHR-EYW
14h 44m2 stops
$909American Airlines
Find Deal
Tue, Jun 4 - Sat, Jun 22
11:42 am - 6:55 amEYW-LHR
14h 13m2 stops
7:55 pm - 1:55 pmLHR-EYW
23h 00m2 stops
$910American Airlines
Find Deal
Tue, Jun 4 - Sun, Jun 23
2:29 pm - 7:45 amEYW-LHR
12h 16m1 stop
7:55 pm - 12:06 pmLHR-EYW
21h 11m2 stops
$923American Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 25
2:29 pm - 7:45 amEYW-LHR
12h 16m1 stop
7:55 pm - 12:06 pmLHR-EYW
21h 11m2 stops
$973American Airlines
Find Deal
Tue, Jun 4 - Sat, Jun 22
2:29 pm - 7:45 amEYW-LHR
12h 16m1 stop
3:15 pm - 2:06 pmLHR-EYW
27h 51m1 stop
$974American Airlines
Find Deal
Tue, Jun 4 - Sat, Jun 22
2:29 pm - 7:45 amEYW-LHR
12h 16m1 stop
7:55 pm - 1:55 pmLHR-EYW
23h 00m2 stops
$975American Airlines
Find Deal
Tue, Jun 4 - Sun, Jun 23

Flights from Key West to London - Travel Insights & Trends

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 Heathrow Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Key West to London Heathrow Airport found on KAYAK was with KLM for $3,657. American Airlines proposed a round-trip connection from $778 and British Airways from $808.

Good to know

Cheapest flight

$778
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 Key West to London Heathrow Airport flights

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

    In the last 3 days, the lowest price for a flight from Key West to London Heathrow Airport was $2,546 for a one-way ticket and $778 for a round-trip.

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

    Yes

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

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

  • Which airline alliances offer flights from Key West to London Heathrow Airport?

    SkyTeam, and oneworld are the airline alliances operating flights between Key West and London Heathrow Airport, with SkyTeam being the most commonly used for this 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 $908 and an overall rating of 7.3, American Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $807 and an overall rating of 6.8.

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

    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 Heathrow Airport.

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

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

    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 Heathrow Airport with an airline and back to Key West with another airline. Booking your flights between Key West and LHR 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 London Heathrow Airport?

    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 Heathrow Airport from Key West up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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.
7.3
American AirlinesOverall score based on 14284 reviews
6.6Food
7.1Entertainment
7.2Comfort
7.6Boarding
8.0Crew
Airline reviews

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

6.0 GoodAnonymous, May 2024PHL - LHR
Read more about American Airlines reviews

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

Was flying in premium eco and there were around 5-6 movies I wanted to watch and none of those could I play for some reasons. Not just me we checked w the person sitting next to me. Few of the movies were only playable :( Also that was not great that we couldn't upgrade to business however tried to, many times before the flight :(

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

This was not the BA business class it used to be. Mediocre food, attendants seemed stretched thin. All the little luxuries that used to make BA business fun were missing. Flight delayed and the explanation given was they forgot to pick up crew - I hope I misheard! Transfer in LHR “sticky” - we thought we had way too much time at 3hours but it was needed. Next time will try different route.

Always getting updates by email very easy to check in on line. There was plenty of checking in staff to get you all through. It was nice that the flight attendants took time to talk to you and were interested in your holiday.

Flight from Phoenix to London was very quiet. Excellent space available for comfort, couldn't fault

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

Liked that my American Airlines status seamlessly transferred to BA so luggage check was free. Flights were on time, boarding quick. Wish they didn’t assign connecting gate so late at Heathrow.

The entire process was flawless and as expected flying first class. The only thing that I have a complaint on...when first boarding, the plane was EXTREMELY cold; then when we were trying to sleep, it was way too hot - just better regulating (especially trying to sleep) would have made it perfect.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working. - Expect to be woken up more than an hour before landing when they start dinging the bell and making announcements and turning on all cabin lights to serve a snack. I would prefer they remain quiet and only serve people who want to wake up.

Better food and more space in the seats. Also when doing the web check in both times I was going in to your site the minute you open it and there is not really many seats to choose only to buy!!!

Book cheap flights from Key West to London

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Key West to London found on KAYAK in the last 72 hours.
9/7Sat
2 stops
43h 55mEYW-LHR
$2,546
9/7Sat
1 stopKLM
14h 10mEYW-LHR
$3,657
9/7Sat
1 stopBritish Airways
30h 34mEYW-LHR
$4,942
9/7Sat
2 stopsAmerican Airlines
13h 02mEYW-LHR
$7,336
9/7Sat
3 stops
35h 25mEYW-LHR
$15,582

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Last minute flights from Key West to London

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Key West to London that are departing in the next 10 days.
6/4Tue
multi-stopAmerican Airlines
14h 13mEYW-LHR
6/19Wed
multi-stopAmerican Airlines
14h 44mLHR-EYW
$793
6/4Tue
multi-stopAmerican Airlines
14h 13mEYW-LHR
6/20Thu
multi-stopAmerican Airlines
13h 29mLHR-EYW
$794
6/4Tue
multi-stopAmerican Airlines
12h 16mEYW-LHR
6/20Thu
multi-stopAmerican Airlines
13h 29mLHR-EYW
$854
6/4Tue
multi-stopAmerican Airlines
14h 13mEYW-LHR
6/25Tue
multi-stopAmerican Airlines
23h 11mLHR-EYW
$859
6/4Tue
multi-stopAmerican Airlines
14h 13mEYW-LHR
6/22Sat
multi-stopAmerican Airlines
14h 44mLHR-EYW
$909
6/4Tue
multi-stopAmerican Airlines
14h 13mEYW-LHR
6/23Sun
multi-stopAmerican Airlines
23h 00mLHR-EYW
$910
6/4Tue
multi-stopAmerican Airlines
12h 16mEYW-LHR
6/25Tue
multi-stopAmerican Airlines
21h 11mLHR-EYW
$923
6/4Tue
multi-stopAmerican Airlines
12h 16mEYW-LHR
6/22Sat
multi-stopAmerican Airlines
21h 11mLHR-EYW
$973
6/4Tue
multi-stopAmerican Airlines
12h 16mEYW-LHR
6/22Sat
multi-stopAmerican Airlines
27h 51mLHR-EYW
$974
6/4Tue
multi-stopAmerican Airlines
12h 16mEYW-LHR
6/23Sun
multi-stopAmerican Airlines
23h 00mLHR-EYW
$975

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Key West - London Heathrow Airport Flights

Departure:

Key West (EYW)United States

Destination:

London Heathrow Airport (LHR)United Kingdom

Cabin classes: