What is the cheapest airline that flies from Key West to London?

JetBlue, American Airlines, and United Airlines are the most popular carriers operating from Key West to London

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.

£211 Cheap Flights from Key West to London in 2025/26

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Find the cheapest flights from Key West to London

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

13:33 - 11:30EYW-LHR

16h 57m1 stop

19:40 - 19:10LHR-EYW

28h 30m2 stops

£492British Airways

Find Deal

Sun, 1 Feb - Tue, 10 Feb

13:33 - 19:00EYW-LGW

24h 27m2 stops

11:45 - 23:56LGW-EYW

17h 11m2 stops

£497British Airways

Find Deal

Sun, 1 Feb - Tue, 10 Feb

13:33 - 11:30EYW-LHR

16h 57m1 stop

11:15 - 23:56LHR-EYW

17h 41m1 stop

£498British Airways

Find Deal

Sun, 1 Feb - Tue, 10 Feb

07:40 - 07:50EYW-LHR

19h 10m1 stop

10:45 - 20:06LHR-EYW

14h 21m1 stop

£530Delta

Find Deal

Sun, 7 Dec - Sun, 14 Dec

14:30 - 07:15EYW-LHR

11h 45m1 stop

07:25 - 22:11LHR-EYW

19h 46m2 stops

£536United Airlines

Find Deal

Tue, 14 Apr - Wed, 29 Apr

07:00 - 06:55EYW-LHR

18h 55m2 stops

07:25 - 22:11LHR-EYW

19h 46m2 stops

£539United Airlines

Find Deal

Tue, 14 Apr - Wed, 29 Apr

18:00 - 13:30EYW-LHR

14h 30m1 stop

10:55 - 19:44LHR-EYW

13h 49m1 stop

£559KLM

Find Deal

Tue, 14 Apr - Wed, 29 Apr

14:35 - 07:50EYW-LHR

13h 15m1 stop

06:30 - 19:44LHR-EYW

18h 14m2 stops

£577Virgin Atlantic

Find Deal

Fri, 27 Mar - Tue, 31 Mar

18:00 - 09:00EYW-LHR

11h 00m1 stop

06:30 - 19:44LHR-EYW

18h 14m2 stops

£578Virgin Atlantic

Find Deal

Fri, 27 Mar - Tue, 31 Mar

14:35 - 09:00EYW-LHR

14h 25m1 stop

10:55 - 19:44LHR-EYW

13h 49m1 stop

£598Delta

Find Deal

Fri, 27 Mar - Tue, 31 Mar

British Airways flights from Key West to London

Our best British Airways deals on Key West to London flight tickets

British Airways

1 Feb

EYW13:33Key West

16h 57m

1 stop

LHR11:30London Heathrow

10 Feb

LHR19:40London Heathrow

28h 30m

2 stops

EYW19:10Key West

£492

Find similar

British Airways

1 Feb

EYW13:33Key West

24h 27m

2 stops

LGW19:00London Gatwick

10 Feb

LGW11:45London Gatwick

17h 11m

2 stops

EYW23:56Key West

£497

Find similar

British Airways

1 Feb

EYW13:33Key West

16h 57m

1 stop

LHR11:30London Heathrow

10 Feb

LHR11:15London Heathrow

17h 41m

1 stop

EYW23:56Key West

£498

Find similar

United Airlines flights from Key West to London

Our best United Airlines deals on Key West to London flight tickets

United Airlines

14 Apr

EYW14:30Key West

11h 45m

1 stop

LHR07:15London Heathrow

29 Apr

LHR07:25London Heathrow

19h 46m

2 stops

EYW22:11Key West

£536

Find similar

United Airlines

14 Apr

EYW07:00Key West

18h 55m

2 stops

LHR06:55London Heathrow

29 Apr

LHR07:25London Heathrow

19h 46m

2 stops

EYW22:11Key West

£539

Find similar

United Airlines

14 Apr

EYW16:05Key West

36h 55m

3 stops

LHR10:00London Heathrow

29 Apr

LHR07:25London Heathrow

19h 46m

2 stops

EYW22:11Key West

£550

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/2

13:33-11:30

1 stop16h 57m

London Heathrow

Tue 10/2

19:40-19:10

2 stops28h 30m

£492

Key WestLondon

EYW - LGW

EYWLGW

Key West

Sun 1/2

13:33-19:00

2 stops24h 27m

London Gatwick

Tue 10/2

11:45-23:56

2 stops17h 11m

£497

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/2

13:33-11:30

1 stop16h 57m

London Heathrow

Tue 10/2

11:15-23:56

1 stop17h 41m

£498

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 7/12

07:40-07:50

1 stop19h 10m

London Heathrow

Sun 14/12

10:45-20:06

1 stop14h 21m

£530

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 14/4

14:30-07:15

1 stop11h 45m

London Heathrow

Wed 29/4

07:25-22:11

2 stops19h 46m

£536

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 14/4

07:00-06:55

2 stops18h 55m

London Heathrow

Wed 29/4

07:25-22:11

2 stops19h 46m

£539

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 14/4

18:00-13:30

1 stop14h 30m

London Heathrow

Wed 29/4

10:55-19:44

1 stop13h 49m

£559

Key WestLondon

EYW - LHR

EYWLHR

Key West

Fri 27/3

14:35-07:50

1 stop13h 15m

London Heathrow

Tue 31/3

06:30-19:44

2 stops18h 14m

£577

Key WestLondon

EYW - LHR

EYWLHR

Key West

Fri 27/3

18:00-09:00

1 stop11h 00m

London Heathrow

Tue 31/3

06:30-19:44

2 stops18h 14m

£578

Key WestLondon

EYW - LHR

EYWLHR

Key West

Fri 27/3

14:35-09:00

1 stop14h 25m

London Heathrow

Tue 31/3

10:55-19:44

1 stop13h 49m

£598

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from Key West to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to London?

Our data shows that Sunday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £592. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Key West to London for around £1,196.

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

Direct flights	None

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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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 00m.
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.

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Gatwick

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Slough

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Southend-on-Sea

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Guildford

Colchester

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Chelmsford

Worthing

Dartford

Ramsgate

Bedford

Stansted

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.