$631 Find Cheap Flights from Key West to the United Kingdom

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 the United Kingdom departing on 2/19. 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, 0 bags

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Cheap Flights from Key West to the United Kingdom

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London1 stop$631
Manchester
Manchester2 stops$906
London
London1 stop$631
Manchester
Manchester2 stops$906

Book Cheap Key West to the United Kingdom Plane Tickets

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

Thu, Feb 19 - Mon, Mar 2
Multiple Airlines Logo
2:46 pm - 11:40 am
EYW
-
LHR
15h 54m1 stop
Multiple Airlines Logo
6:30 am - 7:42 pm
LHR
-
EYW
18h 12m2 stops
$631Multiple Airlines
Fri, Feb 20 - Sun, Mar 1
United Airlines Logo
6:40 pm - 10:50 am
EYW
-
LHR
11h 10m1 stop
United Airlines Logo
9:00 am - 5:44 pm
LHR
-
EYW
37h 44m2 stops
$635United Airlines
Thu, Feb 19 - Sat, Feb 28
United Airlines Logo
7:00 am - 7:10 am
EYW
-
LHR
19h 10m2 stops
United Airlines Logo
9:00 am - 5:44 pm
LHR
-
EYW
37h 44m2 stops
$639United Airlines
Thu, Feb 19 - Mon, Mar 2
Delta Logo
11:59 am - 7:40 am
EYW
-
LHR
14h 41m2 stops
Delta Logo
6:30 am - 7:42 pm
LHR
-
EYW
18h 12m2 stops
$641Delta
Thu, Feb 19 - Sat, Feb 28
KLM Logo
2:46 pm - 7:50 am
EYW
-
LHR
12h 04m1 stop
KLM Logo
10:45 am - 7:42 pm
LHR
-
EYW
13h 57m1 stop
$659KLM
Sat, Feb 21 - Sun, Mar 1
Scandinavian Airlines Logo
2:46 pm - 9:00 am
EYW
-
LHR
13h 14m1 stop
Scandinavian Airlines Logo
10:45 am - 7:42 pm
LHR
-
EYW
13h 57m1 stop
$685Scandinavian Airlines
Sun, Feb 1 - Tue, Feb 10
British Airways Logo
7:45 pm - 8:35 am
EYW
-
LHR
31h 50m1 stop
British Airways Logo
9:45 am - 7:10 pm
LHR
-
EYW
14h 25m1 stop
$693British Airways
Sun, Feb 1 - Tue, Feb 10
KLM Logo
6:06 pm - 11:40 am
EYW
-
LHR
12h 34m1 stop
KLM Logo
6:30 am - 7:40 pm
LHR
-
EYW
18h 10m2 stops
$732KLM
Sun, Feb 1 - Tue, Feb 10
British Airways Logo
7:45 pm - 6:50 am
EYW
-
LHR
30h 05m1 stop
British Airways Logo
6:45 pm - 7:10 pm
LHR
-
EYW
29h 25m2 stops
$736British Airways
Wed, Jun 3 - Sat, Jun 13
Delta Logo
11:45 am - 7:15 am
EYW
-
MAN
14h 30m1 stop
Delta Logo
1:15 pm - 10:58 am
MAN
-
EYW
26h 43m1 stop
$1,170Delta
Booking Insights

KAYAK's insights & trends for Key West to the United Kingdom flights

Get data-powered insights and trends into flights from Key West to the United Kingdom 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 the United Kingdom?

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 the United Kingdom were found on United Airlines ($635) and Air France ($659).

Good to know

Cheapest flight$631
Flight from Key West to London Heathrow Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Key West to the United Kingdom?

    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 the United Kingdom.

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

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

    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 from Key West to the United Kingdom with an airline and back with another airline.

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

    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 from Key West to the United Kingdom 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 the United Kingdom

 
Need help choosing which airline to fly with from Key West to the United Kingdom? 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 11079 reviews
7.5Boarding
8.0Crew
7.2Comfort
6.9Entertainment
6.4Food
Airline reviews

Boarding was organized and timely. Food was mediocre, especially for first class travel.

8.0 ExcellentKrishna, Dec 2025
TPA - PHX
Read more American Airlines reviews

Boarding was organized and timely. Food was mediocre, especially for first class travel.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

My last flight on 25 Dec, it’s Christmas Day, everyone happy and very good mood. I really enjoy traveling with Americans Airlines from Miami to Minneapolis my home town after long flight from lhe to Doha then Miami. Thank you again to make my travels comfortable and relaxed. Best regards

I don’t know who decides what food to serve on these flights but I would be so embarrassed if I served this to anyone and call it food…

For whatever reason, the flight was not catered -we were told it would be a 45 minute delay waiting for catering - so no food. There were opened candy and peanuts in the seatback pocket. Flight landed early in DFW but due to the assigned gate not being available, we sat on the ground for 30 minutes waiting for the gate to open - making the flight actually arrive at the gate late.

Experience was good, however I had a delay due to weather happening and had to re purchase a seat on a new plane for a higher price (could be my own issue and misunderstanding) but other than that situation. First time flyer (by myself) was terrific!! The last from ORD to ALO didn't have wifi, but it was only 45 minutes so I'm sure that was part of the reason. Overall my experience was great! Next time I will remember to buy tickets with longer layovers. The delays really saved my overall anxiety. :)

Flight was delayed 17 hours due to aircraft issues. American did provide hotel, transportation and meals, 3 hours past boarding time, but it took us another hour to get the vouchers.

I appreciated that it was on time, safe and professional. I didn’t like that I wasn’t in a place where I had a window at my window seat. It would have been nice to know that in advance. If it was mentioned in the ticketing, I didn’t notice it.

I like that the crew kept us informed but we moved back and forth from gate to gate before the aircraft arrived.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Everything you need to know for your flight from Key West to the United Kingdom

Information on your arrival and departure airports