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Cheap flights from Key West to London from £284

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 24/5. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — LON
18 Apr — 25 Apr1
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 19 March 2026.

Fri 27/313:06
EYW
-
LGW
1 stop16h 54m
Multiple Airlines
Tue 7/414:00
LGW
-
EYW
1 stop26h 11m
Multiple Airlines
Deal found 14/3£548
Mon 30/313:06
EYW
-
LGW
1 stop15h 54m
Multiple Airlines
Mon 13/414:00
LGW
-
EYW
2 stops26h 30m
Multiple Airlines
Deal found 14/3£580
Tue 8/911:26
EYW
-
LHR
1 stop14h 29m
American Airlines
Thu 8/1009:55
LHR
-
EYW
1 stop13h 29m
American Airlines
Deal found 15/3£598
Tue 8/911:26
EYW
-
LHR
1 stop14h 29m
British Airways
Thu 8/1009:55
LHR
-
EYW
1 stop13h 29m
British Airways
Deal found 17/3£614
Wed 2/1214:30
EYW
-
LHR
1 stop12h 55m
United Airlines
Sun 6/1213:00
LHR
-
EYW
2 stops29h 02m
United Airlines
Deal found 15/3£623
Wed 8/411:51
EYW
-
LGW
1 stop17h 09m
Multiple Airlines
Fri 17/414:00
LGW
-
EYW
2 stops50h 44m
Multiple Airlines
Deal found 18/3£630
Sun 26/415:58
EYW
-
LHR
2 stops21h 57m
British Airways
Tue 5/506:15
LHR
-
EYW
2 stops21h 43m
British Airways
Deal found 14/3£637
Sun 26/415:58
EYW
-
LGW
2 stops23h 02m
British Airways
Tue 5/520:40
LGW
-
EYW
2 stops31h 18m
British Airways
Deal found 14/3£646
Mon 15/612:07
EYW
-
LGW
1 stop16h 53m
Multiple Airlines
Wed 8/714:00
LGW
-
EYW
1 stop26h 25m
Multiple Airlines
Deal found 17/3£728
Mon 15/612:07
EYW
-
LGW
1 stop16h 53m
Multiple Airlines
Thu 9/714:00
LGW
-
EYW
1 stop26h 27m
Multiple Airlines
Deal found 17/3£740
Mon 8/612:07
EYW
-
LGW
1 stop16h 53m
Multiple Airlines
Wed 8/714:00
LGW
-
EYW
1 stop26h 25m
Multiple Airlines
Deal found 17/3£743
Mon 8/612:07
EYW
-
LGW
1 stop16h 53m
Multiple Airlines
Thu 9/714:00
LGW
-
EYW
1 stop26h 27m
Multiple Airlines
Deal found 17/3£756

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 19 March 2026.

Round-trip from

£580

One-way from

£284
30/3-13/4
  • 30/3-13/4
  • 3 total stops
  • 42h 24m total
  • Key West to London
Search Deals
24/5
  • 24/5
  • 3 total stops
  • 50h 50m 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 19 March 2026.
Use the filters below to find and compare flights from Key West to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Key WestLondon

EYW - LGW

EYWLGW

Key West

Wed 8/4

11:51-10:00

1 stop17h 09m

London Gatwick

Fri 17/4

14:00-11:44

2 stops50h 44m

£630

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sat 4/4

16:38-07:45

1 stop34h 07m

London Heathrow

Sun 12/4

13:40-15:57

1 stop31h 17m

£689

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 13/7

14:26-08:20

1 stop12h 54m

London Heathrow

Wed 22/7

13:40-15:07

2 stops30h 27m

£776

Key WestLondon

EYW - LGW

EYWLGW

Key West

Sun 26/4

09:46-10:00

1 stop19h 14m

London Gatwick

Tue 5/5

09:25-09:49

2 stops29h 24m

£783

Key WestLondon

EYW - LGW

EYWLGW

Key West

Fri 12/6

12:07-10:45

2 stops17h 38m

London Gatwick

Thu 9/7

14:00-11:27

1 stop26h 27m

£862

Key WestLondon

EYW - LGW

EYWLGW

Key West

Fri 12/6

12:07-10:45

2 stops17h 38m

London Gatwick

Wed 15/7

14:00-11:25

1 stop26h 25m

£929

Key WestLondon

EYW - LGW

EYWLGW

Key West

Mon 8/6

12:07-10:00

1 stop16h 53m

London Gatwick

Fri 10/7

14:00-10:05

2 stops49h 05m

£931
Fastest return journey

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 13/7

14:21-10:55

1 stop15h 34m

London Heathrow

Wed 22/7

09:55-19:06

1 stop14h 11m

£1,010

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sat 4/4

12:30-10:20

2 stops16h 50m

London Heathrow

Sun 12/4

11:20-11:38

3 stops29h 18m

£1,190

Key WestLondon

EYW - LGW

EYWLGW

Key West

Sat 4/4

12:30-09:45

2 stops16h 15m

London Gatwick

Sun 12/4

12:05-11:38

2 stops28h 33m

£1,206

Flights are sorted by cheapest return flights first.

Deals found on 15/3

Showing 1-10 of 23 resultsSorted by cheapest first
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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 £689, United Airlines can have you in London from Key West in 34h 07m. Airlines will cover a distance of 4539 mi.

  • 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
Milton Keynes
Wembley
Croydon
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Eastbourne
Romford
Ipswich
Bedford
Chelmsford
Southend-on-Sea

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Deals for Key West to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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.

Can Cheapflights notify me if prices for flights from Key West to London become cheaper?

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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