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Cheap flights from Key West to London from £486

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — LON
15 Mar — 22 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Key West to London

Enter your travel dates to find the best prices.

Cheapest flights from Key West to London
Explore the most affordable flight options available from Key West to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 February 2026.

Sun 11/1014:01
EYW
-
LHR
1 stop11h 54m
British Airways
Mon 9/1108:25
LHR
-
EYW
2 stops40h 04m
British Airways
Deal found 12/2£486
Mon 6/418:25
EYW
-
LHR
1 stop13h 50m
KLM
Tue 14/409:20
LHR
-
EYW
1 stop13h 03m
KLM
Deal found 10/2£497
Mon 6/416:40
EYW
-
LHR
1 stop11h 25m
American Airlines
Tue 14/415:00
LHR
-
EYW
1 stop12h 58m
American Airlines
Deal found 13/2£497
Sun 11/1014:35
EYW
-
LHR
1 stop17h 40m
KLM
Fri 16/1011:15
LHR
-
EYW
1 stop13h 28m
KLM
Deal found 12/2£500
Mon 6/407:30
EYW
-
LHR
1 stop18h 15m
Virgin Atlantic
Tue 14/409:40
LHR
-
EYW
2 stops15h 00m
Virgin Atlantic
Deal found 10/2£500
Mon 14/914:30
EYW
-
LHR
1 stop12h 50m
United Airlines
Mon 28/908:40
LHR
-
EYW
2 stops18h 31m
United Airlines
Deal found 12/2£516
Mon 6/416:38
EYW
-
LHR
1 stop13h 57m
United Airlines
Tue 14/414:05
LHR
-
EYW
2 stops29h 46m
United Airlines
Deal found 13/2£529
Mon 14/907:00
EYW
-
LHR
1 stop18h 25m
KLM
Mon 28/911:15
LHR
-
EYW
1 stop13h 30m
KLM
Deal found 12/2£536
Mon 6/419:42
EYW
-
LHR
2 stops17h 33m
British Airways
Tue 14/411:30
LHR
-
EYW
2 stops40h 28m
British Airways
Deal found 10/2£543
Mon 6/413:06
EYW
-
LGW
1 stop15h 54m
Multiple Airlines
Tue 14/413:05
LGW
-
EYW
2 stops27h 06m
Multiple Airlines
Deal found 10/2£688
Sun 5/409:46
EYW
-
LGW
2 stops39h 34m
Multiple Airlines
Sun 12/414:00
LGW
-
EYW
1 stop27h 26m
Multiple Airlines
Deal found 10/2£739
Wed 25/215:51
EYW
-
LGW
2 stops46h 09m
British Airways
Sun 1/311:45
LGW
-
EYW
2 stops36h 30m
British Airways
Deal found 9/2£1,081

Find flight deals from Key West to London

Discover tips and strategies to find the most affordable flight options for your journey from Key West (EYW) to London (LON). 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 13 February 2026.

Round-trip from

£497
KLM
  • KLM
  • 6/4-14/4
  • 2 total stops
  • 26h 53m total
  • Key West to London
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Key West to London 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 13 February 2026.
Use the filters below to find and compare flights from Key West to London that are best for you.

Fly from

Key West

Fly to

London

Route

Depart

Return

Price

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 6/4

18:25-13:15

1 stop13h 50m

London Heathrow

Tue 14/4

09:20-17:23

1 stop13h 03m

£497

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 6/4

07:30-06:45

1 stop18h 15m

London Heathrow

Tue 14/4

09:40-19:40

2 stops15h 00m

£500

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 6/4

16:38-11:35

1 stop13h 57m

London Heathrow

Tue 14/4

14:05-14:51

2 stops29h 46m

£529

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 6/4

19:42-18:15

2 stops17h 33m

London Heathrow

Tue 14/4

11:30-22:58

2 stops40h 28m

£543

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 6/4

15:56-22:45

2 stops25h 49m

London Heathrow

Tue 14/4

06:10-22:58

2 stops21h 48m

£554

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 26/2

16:52-11:05

1 stop13h 13m

London Heathrow

Mon 2/3

11:10-17:54

2 stops35h 44m

£555

Key WestLondon

EYW - LGW

EYWLGW

Key West

Mon 6/4

13:06-10:00

1 stop15h 54m

London Gatwick

Tue 14/4

13:05-11:11

2 stops27h 06m

£688

Key WestLondon

EYW - LGW

EYWLGW

Key West

Wed 25/2

15:51-19:00

2 stops46h 09m

London Gatwick

Sun 1/3

11:45-19:15

2 stops36h 30m

£1,081

Key WestLondon

EYW - LGW

EYWLGW

Key West

Sun 5/4

12:30-15:10

2 stops21h 40m

London Gatwick

Sun 12/4

12:05-11:38

2 stops28h 33m

£1,677

Key WestLondon

EYW - LGW

EYWLGW

Key West

Mon 6/4

12:30-09:45

2 stops16h 15m

London Gatwick

Tue 14/4

10:35-11:38

2 stops30h 03m

£1,818

Flights are sorted by cheapest return flights first.

Deals found on 10/2

Showing 1-10 of 11 results
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Best time to book a flight from Key West to London

Have a flexible travel schedule? Discover the best time to fly to London from Key West 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 Key West to London
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Key West to London. 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 from for flights from Key West to London?

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

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

    For as low as £497, KLM can have you in London from Key West in 13h 50m. Airlines will cover a distance of 4539 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Luton
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Gatwick
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Hounslow
Ilford
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Why should you use Cheapflights to find cheap flight tickets from Key West to London?

Cheapflights helps you find that perfect flight to London from Key West by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Key West to London with no change fees?

Certainly. Search results for flights to London from Key West shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Not ready to book yet? You can track prices for flights from Key West to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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