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Cheap flights from Key West to London from £544

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to London departing on 14/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from Key West to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:07 - 10:00
EYW
-
LGW
16h 53m
1 stop
Multiple Airlines Logo
14:00 - 11:27
LGW
-
EYW
26h 27m
1 stop
£544Multiple Airlines
Fri, 14 Aug - Sun, 23 Aug
Multiple Airlines Logo
20:54 - 08:15
EYW
-
LGW
30h 21m
1 stop
Multiple Airlines Logo
10:10 - 10:19
LGW
-
EYW
29h 09m
1 stop
£601Multiple Airlines
Thu, 5 Nov - Wed, 11 Nov
Multiple Airlines Logo
20:54 - 08:15
EYW
-
LGW
30h 21m
1 stop
Multiple Airlines Logo
10:10 - 10:19
LGW
-
EYW
29h 09m
1 stop
£603Multiple Airlines
Thu, 5 Nov - Wed, 11 Nov
Multiple Airlines Logo
12:07 - 10:00
EYW
-
LGW
16h 53m
1 stop
Multiple Airlines Logo
14:00 - 16:13
LGW
-
EYW
31h 13m
2 stops
£611Multiple Airlines
Fri, 14 Aug - Sun, 23 Aug
British Airways Logo
20:00 - 12:05
EYW
-
LHR
11h 05m
1 stop
British Airways Logo
07:35 - 19:29
LHR
-
EYW
16h 54m
2 stops
£657British Airways
Thu, 5 Nov - Wed, 11 Nov
British Airways Logo
12:00 - 08:15
EYW
-
LHR
15h 15m
1 stop
British Airways Logo
06:15 - 19:29
LHR
-
EYW
18h 14m
2 stops
£658British Airways
Thu, 5 Nov - Wed, 11 Nov
British Airways Logo
20:00 - 16:05
EYW
-
LHR
15h 05m
2 stops
British Airways Logo
07:35 - 19:29
LHR
-
EYW
16h 54m
2 stops
£663British Airways
Thu, 5 Nov - Wed, 11 Nov
American Airlines Logo
11:30 - 06:55
EYW
-
LHR
14h 25m
1 stop
American Airlines Logo
08:15 - 18:44
LHR
-
EYW
15h 29m
2 stops
£761American Airlines
Fri, 14 Aug - Sun, 23 Aug
Virgin Atlantic Logo
13:59 - 10:40
EYW
-
LHR
15h 41m
2 stops
Virgin Atlantic Logo
06:30 - 19:57
LHR
-
EYW
18h 27m
2 stops
£769Virgin Atlantic
Fri, 14 Aug - Sun, 23 Aug
Delta Logo
14:24 - 07:15
EYW
-
LHR
11h 51m
1 stop
Delta Logo
06:15 - 17:20
LHR
-
EYW
16h 05m
2 stops
£774Delta
Tue, 28 Jul - Thu, 6 Aug

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Delta flights from Key West to London

Our best Delta deals on Key West to London flight tickets
Delta
14 Aug
EYW07:40Key West
18h 30m
2 stops
LHR07:10London Heathrow
23 Aug
LHR06:30London Heathrow
18h 27m
2 stops
EYW19:57Key West
£769
Delta
28 Jul
EYW14:24Key West
11h 51m
1 stop
LHR07:15London Heathrow
6 Aug
LHR06:15London Heathrow
16h 05m
2 stops
EYW17:20Key West
£774
Delta
28 Jul
EYW14:24Key West
11h 51m
1 stop
LHR07:15London Heathrow
5 Aug
LHR09:20London Heathrow
13h 00m
1 stop
EYW17:20Key West
£790

United Airlines flights from Key West to London

Our best United Airlines deals on Key West to London flight tickets
United Airlines
22 Jul
EYW14:26Key West
11h 49m
1 stop
LHR07:15London Heathrow
29 Jul
LHR16:00London Heathrow
28h 19m
2 stops
EYW15:19Key West
£793
United Airlines
22 Jul
EYW14:26Key West
11h 49m
1 stop
LHR07:15London Heathrow
30 Jul
LHR10:25London Heathrow
32h 05m
1 stop
EYW13:30Key West
£795
United Airlines
15 Jul
EYW14:26Key West
12h 54m
1 stop
LHR08:20London Heathrow
21 Jul
LHR12:10London Heathrow
30h 20m
2 stops
EYW13:30Key West
£796

momondo 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, momondo users made 279,928 searches. Data last updated 14 June 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

Fri 14/8

12:07-10:00

1 stop16h 53m

London Gatwick

Sun 23/8

14:00-11:27

1 stop26h 27m

£544

Key WestLondon

EYW - LGW

EYWLGW

Key West

Thu 5/11

20:54-08:15

1 stop30h 21m

London Gatwick

Wed 11/11

10:10-10:19

1 stop29h 09m

£601

Key WestLondon

EYW - LGW

EYWLGW

Key West

Thu 5/11

20:54-08:15

1 stop30h 21m

London Gatwick

Wed 11/11

10:10-10:19

1 stop29h 09m

£603

Key WestLondon

EYW - LGW

EYWLGW

Key West

Fri 14/8

12:07-10:00

1 stop16h 53m

London Gatwick

Sun 23/8

14:00-16:13

2 stops31h 13m

£611

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/11

20:00-12:05

1 stop11h 05m

London Heathrow

Wed 11/11

07:35-19:29

2 stops16h 54m

£657

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/11

12:00-08:15

1 stop15h 15m

London Heathrow

Wed 11/11

06:15-19:29

2 stops18h 14m

£658

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/11

20:00-16:05

2 stops15h 05m

London Heathrow

Wed 11/11

07:35-19:29

2 stops16h 54m

£663

Key WestLondon

EYW - LHR

EYWLHR

Key West

Fri 14/8

11:30-06:55

1 stop14h 25m

London Heathrow

Sun 23/8

08:15-18:44

2 stops15h 29m

£761

Key WestLondon

EYW - LHR

EYWLHR

Key West

Fri 14/8

13:59-10:40

2 stops15h 41m

London Heathrow

Sun 23/8

06:30-19:57

2 stops18h 27m

£769
Fastest return journey

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 28/7

14:24-07:15

1 stop11h 51m

London Heathrow

Thu 6/8

06:15-17:20

2 stops16h 05m

£774

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Key West to London

Are you open to changing your travel dates? Check out the ideal times to fly from Key West to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Key West to London (EYW to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Key West to London

Fastest flight time

11h 01m

Direct flights

None
The fastest flight from Key West to London takes 11h 01m
There are no direct flights from Key West to London. There are no popular flight routes from Key West to London.
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Frequently asked questions about flying from Key West to London

  • How far is Key West to London by plane?

    A flight from Key West to London will travel around 4555.0 mi. By plane, this route typically takes 11h 01m.

  • When did momondo last update prices for flights from Key West Airport to London?

    Prices for flights from Key West Airport to London refresh daily.

  • How old do you have to be to fly from Key West Airport to London?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Key West Airport to London.

  • What documentation or ID do you need to fly to London?

    The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Key West to London

  • How do I get Price Alerts for flights from Key West to London?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Key West from London. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Key West to London with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Gatwick
Wembley
Luton
Slough
Southend-on-Sea
Maidstone
Ipswich
Ilford
Canterbury
Guildford
Folkestone
Hayes
Chelmsford
Bedford
Dover
Chichester
Harlow
Colchester

Why use momondo?

Why should I use momondo to find a flight deal from Key West to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Key West to London . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Key West to London with flexible booking policies on momondo?

All flight searches from Key West to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Key West to London?

Once you have performed a search for Key West to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Key West to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Key West and alert you when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport