Find flights
When to book
Airlines
FAQs

Cheap flights from London to Key West from £558

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
5 Jul — 12 Jul1
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 June 2026.

Mon 16/1106:05
LHR
-
EYW
2 stops18h 24m
British Airways
Mon 30/1112:00
EYW
-
LHR
1 stop13h 50m
British Airways
Deal found 1/6£558
Mon 7/906:15
LHR
-
EYW
2 stops18h 24m
British Airways
Thu 10/913:47
EYW
-
LHR
1 stop14h 13m
British Airways
Deal found 3/6£559
Tue 29/906:10
LHR
-
EYW
2 stops18h 07m
British Airways
Tue 13/1014:01
EYW
-
LHR
1 stop13h 59m
British Airways
Deal found 2/6£579
Mon 16/1119:15
LCY
-
EYW
2 stops29h 14m
British Airways
Mon 30/1113:45
EYW
-
LCY
2 stops14h 05m
British Airways
Deal found 1/6£606
Sat 3/1007:35
LHR
-
EYW
2 stops16h 42m
British Airways
Wed 7/1014:01
EYW
-
LHR
1 stop13h 59m
British Airways
Deal found 1/6£627
Mon 7/906:50
LHR
-
EYW
2 stops35h 39m
United Airlines
Sat 31/1014:30
EYW
-
LHR
2 stops50h 05m
United Airlines
Deal found 1/6£631
Sat 4/714:00
LGW
-
EYW
1 stop26h 25m
Multiple Airlines
Fri 10/712:07
EYW
-
LGW
1 stop16h 53m
Multiple Airlines
Deal found 3/6£660
Mon 7/909:20
LCY
-
EYW
2 stops36h 54m
KLM
Sat 31/1018:00
EYW
-
LCY
2 stops15h 15m
KLM
Deal found 1/6£740
Wed 1/719:15
LCY
-
EYW
2 stops28h 51m
British Airways
Wed 8/713:47
EYW
-
LCY
2 stops18h 23m
British Airways
Deal found 1/6£881
Sun 1/1119:15
LCY
-
EYW
2 stops29h 14m
British Airways
Thu 31/1213:46
EYW
-
LCY
2 stops14h 34m
British Airways
Deal found 3/6£919
Mon 7/920:40
LGW
-
EYW
2 stops26h 51m
Multiple Airlines
Sat 31/1012:45
EYW
-
LGW
2 stops17h 05m
Multiple Airlines
Deal found 1/6£983
Thu 18/619:15
LCY
-
EYW
2 stops28h 55m
British Airways
Mon 22/619:40
EYW
-
LCY
2 stops14h 35m
British Airways
Deal found 1/6£1,036

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 June 2026.

Round-trip from

£558

Popular in

December

Cheapest in

March

Average price

£715
British Airways
  • British Airways
  • 16/11-30/11
  • 3 total stops
  • 32h 14m total
  • London to Key West
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£27 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 June 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

LCY - EYW

LCYEYW

London City

Mon 16/11

19:15-19:29

2 stops29h 14m

Key West

Mon 30/11

13:45-08:50

2 stops14h 05m

£606

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Mon 7/9

06:50-13:29

2 stops35h 39m

Key West

Sat 31/10

14:30-20:35

2 stops50h 05m

£631
Fastest return journey

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sat 3/10

06:15-18:33

2 stops17h 18m

Key West

Wed 7/10

14:01-11:55

2 stops16h 54m

£638

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 1/7

08:40-13:30

2 stops33h 50m

Key West

Wed 8/7

16:00-07:45

2 stops34h 45m

£660

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sun 23/8

19:10-19:39

2 stops29h 29m

Key West

Sun 6/9

13:35-06:55

1 stop12h 20m

£736

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sun 1/11

11:05-15:06

2 stops57h 01m

Key West

Thu 31/12

16:05-12:00

1 stop14h 55m

£737

LondonKey West

LCY - EYW

LCYEYW

London City

Mon 7/9

09:20-17:14

2 stops36h 54m

Key West

Sat 31/10

18:00-13:15

2 stops15h 15m

£740

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 18/6

16:40-13:30

2 stops25h 50m

Key West

Mon 22/6

15:55-11:55

1 stop15h 00m

£762

LondonKey West

LCY - EYW

LCYEYW

London City

Wed 1/7

19:15-19:06

2 stops28h 51m

Key West

Wed 8/7

13:47-13:10

2 stops18h 23m

£881

LondonKey West

LCY - EYW

LCYEYW

London City

Sun 1/11

19:15-19:29

2 stops29h 14m

Key West

Thu 31/12

13:46-09:20

2 stops14h 34m

£919

Flights are sorted by cheapest return flights first.

Deals found on 4/6

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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 £163). Flying from London to Key West in June is currently the most expensive (average of £558). 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 58% 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 £425.

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 June 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
689 reviews
Check prices

Comfort

7.3

Entertainment

7.5

Overall

7.5

Food

6.9

Boarding

7.7

Crew

8.1

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
689 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Comfort

7.3

Entertainment

7.5

Overall

7.5

Food

6.9

Boarding

7.7

Crew

8.1

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
8,027 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Comfort

7.3

Entertainment

7.5

Overall

7.5

Food

6.9

Boarding

7.7

Crew

8.1

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 £606, British Airways can have you in Key West from London in 29h 14m. The distance from London to Key West is about 4560 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 £481, 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 22% 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 £163). Flying from London to Key West in June is currently the most expensive (average of £558). 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

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.

Alternative routes for London to Key West

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Orlando flights
Heathrow to Miami flights
Manchester to Orlando flights
Gatwick to Orlando flights
Gatwick to Miami flights
London City to Miami flights
Stansted to Miami flights
Stansted to Orlando flights
Heathrow to Tampa flights
London City to Orlando flights
Luton to Miami flights
Edinburgh to Orlando flights
Gatwick to Fort Lauderdale flights
Luton to Orlando flights
Gatwick to Tampa flights
Heathrow to Fort Lauderdale flights
Stansted to Tampa flights
London City to Tampa flights
Manchester to Miami flights
Manchester to Fort Lauderdale flights
Edinburgh to Miami flights
Luton to Tampa flights
Heathrow to West Palm Beach flights
Heathrow to Jacksonville flights
Heathrow to Melbourne flights
Gatwick to West Palm Beach flights
Birmingham to Orlando flights
Manchester to Tampa flights
Heathrow to Daytona Beach flights
Southend to Miami flights
Luton to Fort Lauderdale flights
Heathrow to Fort Myers flights
Newcastle upon Tyne to Orlando flights
Heathrow to Pensacola flights
Stansted to Fort Lauderdale flights
Southampton to Miami flights
Heathrow to Sarasota flights
Gatwick to Jacksonville flights
London City to Fort Lauderdale flights
Edinburgh to Fort Myers flights
Gatwick to Fort Myers flights
Heathrow to Panama City flights
Gatwick to Sarasota flights
Manchester to Melbourne flights
Edinburgh to Fort Lauderdale flights
Birmingham to Tampa flights
Birmingham to Miami flights
Gatwick to Melbourne flights
Birmingham to Fort Lauderdale flights
Gatwick to Pensacola flights

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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£481Average£556FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£493Average£747FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£516Average£555FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.