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Cheap flights from London to Key West from £305

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
4 Aug — 11 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Key West

Enter your travel dates to find the best prices.

Cheapest flights from London to Key West
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 5 July 2026.

Mon 5/1006:25
LHR
-
EYW
2 stops18h 08m
British Airways
Mon 19/1013:43
EYW
-
LHR
1 stop14h 17m
British Airways
Deal found 3/7£578
Wed 7/1006:15
LHR
-
EYW
2 stops18h 18m
British Airways
Sat 7/1112:00
EYW
-
LHR
1 stop15h 15m
British Airways
Deal found 1/7£585
Fri 25/919:10
LHR
-
EYW
2 stops29h 07m
British Airways
Mon 5/1020:03
EYW
-
LHR
1 stop11h 32m
British Airways
Deal found 2/7£586
Mon 5/1012:20
LGW
-
EYW
2 stops29h 43m
American Airlines
Mon 19/1010:24
EYW
-
LGW
2 stops18h 46m
American Airlines
Deal found 3/7£596
Tue 1/907:30
LHR
-
EYW
2 stops34h 59m
United Airlines
Sat 31/1014:55
EYW
-
LHR
2 stops35h 45m
United Airlines
Deal found 3/7£607
Mon 5/1009:20
LHR
-
EYW
1 stop13h 04m
Virgin Atlantic
Mon 19/1014:00
EYW
-
LHR
1 stop12h 15m
Virgin Atlantic
Deal found 3/7£608
Wed 7/1009:20
LHR
-
EYW
1 stop12h 56m
Virgin Atlantic
Sat 7/1118:11
EYW
-
LHR
1 stop32h 39m
Virgin Atlantic
Deal found 1/7£611
Thu 1/1017:05
LHR
-
EYW
2 stops29h 34m
Finnair
Sun 1/1114:35
EYW
-
LHR
1 stop26h 35m
Finnair
Deal found 30/6£619
Mon 5/1019:15
LCY
-
EYW
2 stops29h 18m
British Airways
Mon 19/1013:43
EYW
-
LCY
2 stops18h 37m
British Airways
Deal found 3/7£629
Sat 19/906:50
LHR
-
EYW
2 stops35h 39m
United Airlines
Fri 5/317:56
EYW
-
LHR
2 stops30h 59m
United Airlines
Deal found 4/7£636
Thu 6/814:00
LGW
-
EYW
1 stop26h 27m
Multiple Airlines
Sun 16/812:05
EYW
-
LGW
1 stop16h 55m
Multiple Airlines
Deal found 3/7£645
Thu 19/1107:50
LCY
-
EYW
2 stops40h 39m
British Airways
Mon 23/1112:00
EYW
-
LCY
2 stops21h 35m
British Airways
Deal found 30/6£647

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 5 July 2026.

Round-trip from

£578

One-way from

£305

Popular in

June

Cheapest in

March

Average price

£749
British Airways
  • British Airways
  • 5/10-19/10
  • 3 total stops
  • 32h 25m total
  • London to Key West
Search Deals
28/10
  • 28/10
  • 1 total stop
  • 28h 09m total
  • London to Key West
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 858,174 searches. Data last updated 5 July 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

Price

Cheapest return flight

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 25/9

19:10-19:17

2 stops29h 07m

Key West

Mon 5/10

20:03-12:35

1 stop11h 32m

£586
Fastest return journey

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Mon 5/10

06:25-19:33

2 stops18h 08m

Key West

Mon 19/10

13:43-12:00

2 stops17h 17m

£588

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Mon 5/10

12:20-13:03

2 stops29h 43m

Key West

Mon 19/10

10:24-10:10

2 stops18h 46m

£596

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 7/10

09:20-17:16

1 stop12h 56m

Key West

Sat 7/11

18:11-07:50

1 stop32h 39m

£611

LondonKey West

LCY - EYW

LCYEYW

London City

Mon 5/10

19:15-19:33

2 stops29h 18m

Key West

Mon 19/10

13:43-13:20

2 stops18h 37m

£629

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 1/9

07:45-13:29

1 stop34h 44m

Key West

Sat 31/10

14:55-10:50

2 stops15h 55m

£631

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sat 19/9

06:50-13:29

2 stops35h 39m

Key West

Fri 5/3

14:30-21:20

1 stop25h 50m

£636

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Thu 6/8

14:00-11:27

1 stop26h 27m

Key West

Sun 16/8

12:05-10:00

1 stop16h 55m

£645

LondonKey West

LCY - EYW

LCYEYW

London City

Thu 19/11

07:50-19:29

2 stops40h 39m

Key West

Mon 23/11

12:00-14:35

2 stops21h 35m

£647

LondonKey West

LCY - EYW

LCYEYW

London City

Wed 7/10

19:00-17:16

2 stops27h 16m

Key West

Sat 7/11

14:00-17:20

2 stops22h 20m

£656

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 38 resultsSorted by cheapest first
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3
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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.
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

What is the cheapest month to book a flight from London to Key West?

Currently, April is the cheapest month in which you can book a flight from London to Key West (average of £164). Flying from London to Key West in June is currently the most expensive (average of £561). 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.

How much does it cost for a return flight from London to Key West?

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 60% 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 £428.

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 5 July 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.
Virgin Atlantic
7.5
Good
691 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Food

6.9

Comfort

7.3

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
691 reviews
Virgin Atlantic
7.5
Good
691 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Food

6.9

Comfort

7.3

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,094 reviews
Virgin Atlantic
7.5
Good
691 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Food

6.9

Comfort

7.3

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

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.

  • What airport do you fly into for flights to Key West from London?

    Key West (EYW), located 2.6 mi from the city center, is the airport you fly into when you book flights from London to Key West. 3 airlines have flights to Key West from London on a regular basis. Booking flights from London to Key West should not be difficult; the airport handles an average of 0 inbound flights from London per day.

  • How long is the flight from London to Key West?

    For as low as £611, British Airways can have you in Key West from London in 12h 56m. The distance from London to Key West is about 4539 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from London to Key West round-trip?

    British Airways, at £484, was found to be the cheapest airline from London to Key West.Alternate airlines flying return to your destination include Virgin Atlantic and American Airlines. These flights start at 23% lower than the current average price 3 months from now.

  • What are the most popular routes from London to Key West?

    The most popular route from London to Key West is London Heathrow - Key West. You may also consider London City - Key West or London Gatwick - Key West.

  • Can I find deals for flights from London to Key West that include hotel bookings?

    Yes. In addition to deals on London to Key West flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Key West.

  • Can I find deals for business class flights from London to Key West?

    Yes. Cheapflights offers flight deals from London to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, April is the cheapest month in which you can book a flight from London to Key West (average of £164). Flying from London to Key West in June is currently the most expensive (average of £561). 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.

See more FAQs

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Top 3 airlines flying from London to Key West

Discover the top 3 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 858,174 searches. Data last updated 5 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£484Average£559FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£496Average£726FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£519Average£558FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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.

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