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Cheap flights from London to Key West from £440
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
11 Nov — 18 Nov1
Cheap flight deals from London to Key West
Enter your travel dates to find the best prices.
Cheapest
Best
Last-minute
One-way
Cheapest flights from London to Key WestExplore the most affordable flight options available from London to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 October 2026.
Explore the most affordable flight options available from London to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 October 2026.
Wed 25/1107:30 -
2 stops31h 58m
Wed 2/1212:05 -
1 stop12h 50m
Deal found 11/10£486
Thu 29/1018:00 -
1 stop23h 54m
Tue 3/1116:10 -
1 stop14h 50m
Deal found 11/10£517
Fri 20/1119:40 -
2 stops28h 22m
Fri 27/1116:43 -
1 stop14h 22m
Deal found 7/10£652
Fri 20/1107:30 -
2 stops35h 24m
Fri 27/1114:51 -
2 stops34h 49m
Deal found 7/10£657
Sun 22/1108:40 -
2 stops40h 20m
Sun 29/1118:08 -
1 stop31h 17m
Deal found 8/10£670
Sun 22/1110:50 -
1 stop14h 10m
Sun 29/1118:08 -
1 stop31h 17m
Deal found 8/10£672
Thu 29/1006:20 -
2 stops17h 41m
Tue 3/1107:40 -
2 stops19h 55m
Deal found 11/10£682
Sun 22/1119:15 -
2 stops28h 38m
Sun 29/1113:41 -
2 stops15h 54m
Deal found 8/10£736
Best flights from London to Key WestDiscover carefully curated flight deals from London to Key West that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.
Discover carefully curated flight deals from London to Key West that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.
Fri 5/308:00 -
1 stop14h 02m
Tue 9/318:20 -
1 stop31h 20m
Deal found 8/10£520
Fri 20/1119:40 -
2 stops28h 22m
Fri 27/1116:43 -
1 stop14h 22m
Deal found 7/10£652
Fri 19/307:40 -
1 stop31h 31m
Tue 30/316:05 -
1 stop14h 50m
Deal found 12/10£536
Fri 19/306:05 -
2 stops17h 03m
Tue 30/311:30 -
1 stop20h 05m
Deal found 8/10£676
Fri 20/1107:30 -
2 stops35h 24m
Fri 27/1114:51 -
2 stops34h 49m
Deal found 7/10£657
Last-minute flights from London to Key WestDiscover last-minute flight deals from London to Key West. Data last updated 12 October 2026 and is based on user searches.
Discover last-minute flight deals from London to Key West. Data last updated 12 October 2026 and is based on user searches.
Thu 29/1018:00 -
1 stop23h 54m
Tue 3/1116:10 -
1 stop14h 50m
Deal found 11/10£517
Thu 29/1006:20 -
2 stops17h 41m
Tue 3/1111:51 -
1 stop13h 34m
Deal found 11/10£682
Fri 20/1119:40 -
2 stops28h 22m
Fri 27/1116:43 -
1 stop14h 22m
Deal found 7/10£652
Fri 20/1107:30 -
2 stops35h 24m
Fri 27/1114:51 -
2 stops34h 49m
Deal found 7/10£657
Sun 22/1108:40 -
2 stops40h 20m
Sun 29/1118:08 -
1 stop31h 17m
Deal found 8/10£670
Sun 22/1110:50 -
1 stop14h 10m
Sun 29/1118:08 -
1 stop31h 17m
Deal found 8/10£672
Sun 22/1119:15 -
2 stops28h 38m
Sun 29/1113:41 -
2 stops15h 54m
Deal found 8/10£736
Wed 25/1107:30 -
2 stops31h 58m
Wed 2/1212:05 -
1 stop12h 50m
Deal found 11/10£486
One-way flights from London to Key WestSearch for one-way flight options from London to Key West. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.
Search for one-way flight options from London to Key West. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.
Sat 12/1209:20 -
1 stop32h 03m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 9/10£440
Sat 12/1218:45 -
3 stops44h 34m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 9/10£440
Sun 20/1219:55 -
2 stops42h 23m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 9/10£538
Sat 19/1218:45 -
3 stops44h 34m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 9/10£607
Sun 20/1214:10 -
1 stop27h 33m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 9/10£718
Sat 19/1209:20 -
1 stop32h 03m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 9/10£897
Find flight deals from London to Key West
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Key West (EYW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 October 2026.
Cheapflights Fare Finder
Customise your flight search to find flights from London to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 12 October 2026.
Use the filters below to find and compare flights from London to Key West that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest return flight
LondonKey West
LHR London Heathrow - EYW Key West
LHREYW
London Heathrow
Sat 12/12
09:20-12:23
1 stop32h 03m
Key West
Wed 31/12
00:00-06:00
Nonstop0h 00m
£440
LondonKey West
LHR London Heathrow - EYW Key West
LHREYW
London Heathrow
Sat 12/12
18:45-10:19
3 stops44h 34m
Key West
Wed 31/12
00:00-06:00
Nonstop0h 00m
£440
LondonKey West
LHR London Heathrow - EYW Key West
LHREYW
London Heathrow
Fri 5/3
08:00-17:02
1 stop14h 02m
Key West
Tue 9/3
18:20-06:40
1 stop31h 20m
£520
LondonKey West
LHR London Heathrow - EYW Key West
LHREYW
London Heathrow
Fri 19/3
07:40-11:11
1 stop31h 31m
Key West
Tue 30/3
16:05-11:55
1 stop14h 50m
£536
LondonKey West
LHR London Heathrow - EYW Key West
LHREYW
London Heathrow
Sun 20/12
19:55-09:18
2 stops42h 23m
Key West
Wed 31/12
00:00-06:00
Nonstop0h 00m
£538
LondonKey West
LHR London Heathrow - EYW Key West
LHREYW
London Heathrow
Fri 20/11
19:40-19:02
2 stops28h 22m
Key West
Fri 27/11
16:43-12:05
1 stop14h 22m
£652
LondonKey West
LHR London Heathrow - EYW Key West
LHREYW
London Heathrow
Fri 20/11
07:30-13:54
2 stops35h 24m
Key West
Fri 27/11
14:51-06:40
2 stops34h 49m
£657
LondonKey West
LHR London Heathrow - EYW Key West
LHREYW
London Heathrow
Fri 19/3
06:05-19:08
2 stops17h 03m
Key West
Tue 30/3
11:30-12:35
1 stop20h 05m
£676
Fastest return journey
LondonKey West
LHR London Heathrow - EYW Key West
LHREYW
London Heathrow
Sun 20/12
14:10-12:43
1 stop27h 33m
Key West
Wed 31/12
00:00-06:00
Nonstop0h 00m
£718
Sorted by cheapest first
Best time to book a flight from London to Key West
Have a flexible travel schedule? Discover the best time to fly to Key West from London with our price prediction graph.
LON-EYW
LHR-EYW
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London to Key West
LON-EYW
LHR-EYW
What is the cheapest month to book a flight from London to Key West?
Currently, August is the cheapest month in which you can book a flight from London to Key West (average of £446). Flying from London to Key West in June is currently the most expensive (average of £882). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What’s the top stopover airport for flights from London to Key West?
Share of one-stop return flights from London to Key West chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Atlanta (ATL) – chosen by Cheapflights users on 66% of one-stop itineraries from London to Key West on Cheapflights.
What’s the cheapest stopover airport for flights from London to Key West?
Average return fare for one-stop flights from London to Key West, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Newark (EWR) is the most affordable one-stop option, with an average return flight price of £432.
What’s the fastest stopover option from London to Key West?
Shortest average travel time for one-stop one-way flights from London to Key West, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Charlotte (CLT) have the shortest average one-way travel time for one-stop routes: 12h 58m.
Which airport typically offers the quickest stopover for flights from London to Key West?
Average stopover duration for one-stop one-way flights from London to Key West, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Newark (EWR) offer the fastest connection on this route, with an average stopover time of 1h 39m.
Reviews of airlines servicing Key West
Get insights into the airlines that provide service to Key West. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key West. Reviews last updated 12 October 2026.
Check out reviews from past customers who have flown with Virgin Atlantic and British Airways from London to Key West to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Comfort
7.3
Crew
8.1
Food
6.9
Overall
7.5
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentEdwin,May 2026
LHR - LAX
Entertainment
7.5
Comfort
7.3
Crew
8.1
Food
6.9
Overall
7.5
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentEdwin,May 2026
LHR - LAX
Entertainment
7.5
Comfort
7.3
Crew
8.1
Food
6.9
Overall
7.5
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentEdwin,May 2026
LHR - LAX
Related info for your journey
Find useful and relevant information for your journey from London to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
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Key West flight routes
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Alternative routes for London to Key West
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Key West by adding a car hire and/or hotel booking to your travel itinerary.
Direct flights to Florida
Book a non-stop flight to one of these other cities located in Florida.
Search flights from London to Key West by cabin class
Find flights from London to Key West, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Key West
Explore flights to Key West departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 October 2026.
London and Key West flights
Browse other London and Key West flight options. Last updated on 12 October 2026.
Other flights from London
Browse through other flights departing from London. Flights are based on user searches made on Cheapflights and were last updated on 12 October 2026.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2026
London to Key West flights
Consider these flights travelling from London to Key West.
Top 2 airlines flying from London to Key West
Discover the top 2 airlines that operate flights from London to Key West. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 12 October 2026.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from London to Key West?
Cheapflights helps you search for flights from London to Key West via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from London to Key West?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Key West from London.
Can Cheapflights find flights from London to Key West with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Key West flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from London to Key West become cheaper?
Of course! You can now track prices for flights from London to Key West and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.