LON - EYW

£496 Find Cheap Flights from London to Key West

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Key West departing on 15/11. 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 Key West

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Key West, 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 London to Key West, as well as popular online travel agencies
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Cheap Flights from London to Key West (LON-EYW)

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

Sat, 15 Nov - Sat, 22 Nov
American Airlines Logo
12:10 - 11:10LHR-EYW
28h 00m1 stop
American Airlines Logo
12:30 - 07:00EYW-LHR
13h 30m1 stop
£496American Airlines
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Sat, 15 Nov - Sat, 22 Nov
American Airlines Logo
19:00 - 11:10LHR-EYW
21h 10m2 stops
American Airlines Logo
12:30 - 07:00EYW-LHR
13h 30m1 stop
£499American Airlines
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Thu, 13 Nov - Mon, 17 Nov
Virgin Atlantic Logo
07:45 - 19:44LCY-EYW
16h 59m2 stops
Virgin Atlantic Logo
18:00 - 16:35EYW-LCY
17h 35m2 stops
£509Virgin Atlantic
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Wed, 6 Aug - Wed, 13 Aug
Air France Logo
06:15 - 17:32LHR-EYW
16h 17m2 stops
Air France Logo
18:22 - 11:10EYW-LHR
11h 48m1 stop
£537Air France
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Wed, 6 Aug - Wed, 13 Aug
United Airlines Logo
08:00 - 13:26LHR-EYW
34h 26m1 stop
United Airlines Logo
14:12 - 07:15EYW-LHR
12h 03m1 stop
£545United Airlines
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Wed, 6 Aug - Wed, 13 Aug
Virgin Atlantic Logo
06:15 - 19:49LHR-EYW
18h 34m2 stops
Virgin Atlantic Logo
18:22 - 13:30EYW-LHR
14h 08m1 stop
£545Virgin Atlantic
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Wed, 6 Aug - Wed, 13 Aug
United Airlines Logo
12:15 - 13:26LHR-EYW
30h 11m2 stops
United Airlines Logo
14:12 - 11:50EYW-LHR
16h 38m2 stops
£564United Airlines
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Wed, 13 Aug - Wed, 20 Aug
KLM Logo
15:15 - 17:27LHR-EYW
31h 12m1 stop
KLM Logo
14:00 - 06:45EYW-LHR
11h 45m1 stop
£667KLM
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Thu, 14 Aug - Thu, 21 Aug
KLM Logo
09:20 - 17:27LHR-EYW
13h 07m1 stop
KLM Logo
18:22 - 13:30EYW-LHR
14h 08m1 stop
£687KLM
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Thu, 14 Aug - Thu, 21 Aug
Finnair Logo
19:05 - 12:58LHR-EYW
22h 53m2 stops
Finnair Logo
11:26 - 06:20EYW-LHR
13h 54m2 stops
£697Finnair
Find Deal
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KAYAK's insights & trends for London to Key West flights

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

How much is a round-trip flight from London to Key West?

What’s the cheapest day of the week to fly from London to Key West?

The average price of all round-trip flights from London to Key West clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from London to Key West, look for departures on Mondays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Key West, Saturday is the cheapest day to fly and Tuesday is the most expensive.

What is the cheapest month to fly from London to Key West?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Key West, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Key West is September, where tickets cost £467 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is £841 and £796 respectively.


Good to know - Cheap tickets from London to Key West

Low seasonJune
High seasonJanuary
Cheapest flight£496
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from London Heathrow Airport to Key West

When to book flights from London to Key West

Are your dates flexible? Find out the best times to travel from London to Key West based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 London to Key West

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

    In the last 3 days, the lowest price for a flight from London to Key West was £702 for a one-way ticket and £680 for a return.

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

    London has 5 major airports: London City, London Gatwick, London Heathrow, London Luton, and London Stansted. Key West is the only airport in Key West. You’ll usually find the cheapest deals if you fly from London Heathrow Airport.

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

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

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

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

  • Which is the best airline for flights from London to Key West, KLM or Finnair?

    The two airlines most popular with KAYAK users for flights from London to Key West are KLM and Finnair. With an average price for the route of £456 and an overall rating of 7.8, KLM is the most popular choice. Finnair is also a great choice for the route, with an average price of £612 and an overall rating of 7.6.

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

    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 London to Key West.

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Key West with an airline and back to London with another airline.

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

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

Reviews of the top 5 airlines serving from London to Key West

 
See real verified KAYAK customer reviews for airlines flying from London to Key West. 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 London to Key West? 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.
7.8
KLMOverall score based on 1366 reviews
7.8Boarding
7.7Comfort
7.1Entertainment
8.4Crew
7.2Food
Airline reviews

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

6.0 GoodKathleen P, Jun 2025EDI - AMS
Read more KLM reviews

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

I love flying with United. Unfortunately, I flew on an older plane with minimal upgraded technology (no Bluetooth functionality or handy charging ports). Otherwise, the flight was great and even arrived early.

They changed my seats after I checked in and I was stressed from the time I saw that information until just before boarding, when the gate attendant fixed it, but it shouldn't have happened. And if it couldn't be prevented, then the people on the phone I spoke with should have done something to help, which they did not, nor did they offer me compensation, just meaningless apologies.

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

Very rough getting into denver. my kid threw up it was so rough.

We were given vouchers we couldn’t use with a 5.5 hour delay

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

Cramped seat even in economy plus seat 10A. Over booked flight, no space for the bags

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

Smooth flight, especially take off and landing, and great crew on board. Really loved the stroopwaffles!

Food was excellent. Service was very good. Staff was very helpful to all passengers.

The crew was excellent as ever on Virgin. The special meal was poor unfortunately. More significantly when we arrived at Manchester Airport there was no air bridge provided and we had to exit the plane down a rickety stair case. This is unacceptable for a transatlantic flight. Whilst I understand that this is the airport’s fault at the end of the day the airline is responsible for our transportation and needs to do something.

Super friendly and helpful staff, from check-in desk to cabin crew.

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

The food was very good and it came multiple times

Flight from LGW to JFK delayed by 4 hrs No explanation given until the pilot said the delay due to planned maintenance on the aircraft

We arrived late to London, and consequently were 5 min. late to be allowed through security for our next flight. Even though dozens of people missed the same flight, BA did not radio ahead to hold open security for an extra 5-10 min. to allow people to get on the flight. This caused an additional 6 hour delay in London after waiting over an hour in Customer Service to get rebooked. They did not have enough staff on hand to help people in a timely manner. Not at all happy with the BA's customer care or customer service.

All service prior to the flight was terrible: online check-in not working, no customer service tel,, multiple airport scanners not working, A huge mess.

CONSTANT ERROR MESSAGE THAT THE WIFI COULD NOT BE PURCHASED DUE TO INABILITY TO CONNECT PAYMENT SYSTEM VIA SATELLITE. THIS HAPPENED IN BOTH DIRECTIONS. THE MAIN REASON I TRAVEL IN PRIORITY IS TO BE ABLE TO WORK FOR WHICH I NEED ACCESS TO INTERNET. .

They lost my luggage. Lady who was helping with it in Austin was rude. Not very helpful!

Waited 3.25 hours in plane only to have the flight cancelled.

More space, of course. a footrest! more room to walk. Movie selection was awful. Some good documentaries would help if the movies can't be better. The flight itself was great, crew was great.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

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

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