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

JetBlue and British Airways 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.

£240 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

Cheap return flights

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18:43 - 12:00EYW-LHR

12h 17m1 stop

11:55 - 23:56LHR-EYW

17h 01m1 stop

£497American Airlines

Find Deal

Sun, 1 Feb - Tue, 10 Feb

18:08 - 11:40EYW-LHR

12h 32m1 stop

06:20 - 19:42LHR-EYW

18h 22m2 stops

£529Delta

Find Deal

Sun, 1 Feb - Tue, 10 Feb

14:35 - 13:30EYW-LHR

17h 55m1 stop

06:15 - 19:44LHR-EYW

18h 29m2 stops

£541Delta

Find Deal

Wed, 22 Apr - Wed, 29 Apr

07:40 - 06:25EYW-LHR

17h 45m1 stop

08:55 - 17:15LHR-EYW

13h 20m1 stop

£548Delta

Find Deal

Sun, 7 Dec - Sun, 14 Dec

14:02 - 12:00EYW-LHR

16h 58m1 stop

09:55 - 18:21LHR-EYW

13h 26m1 stop

£555British Airways

Find Deal

Wed, 22 Apr - Wed, 29 Apr

16:02 - 18:15EYW-LHR

21h 13m2 stops

20:00 - 18:21LHR-EYW

27h 21m2 stops

£560Multiple Airlines

Find Deal

Wed, 22 Apr - Wed, 29 Apr

18:00 - 09:00EYW-LHR

11h 00m1 stop

09:20 - 17:13LHR-EYW

12h 53m1 stop

£583Virgin Atlantic

Find Deal

Fri, 27 Mar - Tue, 31 Mar

14:25 - 10:50EYW-LHR

15h 25m2 stops

16:20 - 13:03LHR-EYW

25h 43m2 stops

£633United Airlines

Find Deal

Sun, 1 Feb - Tue, 10 Feb

16:15 - 08:30EYW-LHR

35h 15m2 stops

16:20 - 13:03LHR-EYW

25h 43m2 stops

£638United Airlines

Find Deal

Sun, 1 Feb - Tue, 10 Feb

13:33 - 18:15EYW-LHR

23h 42m2 stops

18:45 - 23:56LHR-EYW

34h 11m2 stops

£643British Airways

Find Deal

Sun, 1 Feb - Tue, 10 Feb

Delta flights from Key West to London

Our best Delta deals on Key West to London flight tickets

Delta

1 Feb

EYW18:08Key West

12h 32m

1 stop

LHR11:40London Heathrow

10 Feb

LHR06:20London Heathrow

18h 22m

2 stops

EYW19:42Key West

£529

Find similar

Delta

22 Apr

EYW14:35Key West

17h 55m

1 stop

LHR13:30London Heathrow

29 Apr

LHR06:15London Heathrow

18h 29m

2 stops

EYW19:44Key West

£541

Find similar

Delta

7 Dec

EYW07:40Key West

17h 45m

1 stop

LHR06:25London Heathrow

14 Dec

LHR08:55London Heathrow

13h 20m

1 stop

EYW17:15Key West

£548

Find similar

British Airways flights from Key West to London

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

British Airways

22 Apr

EYW14:02Key West

16h 58m

1 stop

LHR12:00London Heathrow

29 Apr

LHR09:55London Heathrow

13h 26m

1 stop

EYW18:21Key West

£555

Find similar

British Airways

1 Feb

EYW13:33Key West

23h 42m

2 stops

LHR18:15London Heathrow

10 Feb

LHR18:45London Heathrow

34h 11m

2 stops

EYW23:56Key West

£643

Find similar

British Airways

1 Feb

EYW13:33Key West

16h 17m

2 stops

LGW10:50London Gatwick

10 Feb

LGW11:45London Gatwick

17h 11m

2 stops

EYW23:56Key West

£704

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/2

18:43-12:00

1 stop12h 17m

London Heathrow

Tue 10/2

11:55-23:56

1 stop17h 01m

£497

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/2

18:08-11:40

1 stop12h 32m

London Heathrow

Tue 10/2

06:20-19:42

2 stops18h 22m

£529

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 22/4

14:35-13:30

1 stop17h 55m

London Heathrow

Wed 29/4

06:15-19:44

2 stops18h 29m

£541

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 7/12

07:40-06:25

1 stop17h 45m

London Heathrow

Sun 14/12

08:55-17:15

1 stop13h 20m

£548

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 22/4

14:02-12:00

1 stop16h 58m

London Heathrow

Wed 29/4

09:55-18:21

1 stop13h 26m

£555

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 22/4

16:02-18:15

2 stops21h 13m

London Heathrow

Wed 29/4

20:00-18:21

2 stops27h 21m

£560

Key WestLondon

EYW - LHR

EYWLHR

Key West

Fri 27/3

18:00-09:00

1 stop11h 00m

London Heathrow

Tue 31/3

09:20-17:13

1 stop12h 53m

£583

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/2

14:25-10:50

2 stops15h 25m

London Heathrow

Tue 10/2

16:20-13:03

2 stops25h 43m

£633

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/2

16:15-08:30

2 stops35h 15m

London Heathrow

Tue 10/2

16:20-13:03

2 stops25h 43m

£638

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/2

13:33-18:15

2 stops23h 42m

London Heathrow

Tue 10/2

18:45-23:56

2 stops34h 11m

£643

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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 £1,195.

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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Maidstone

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Canterbury

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Dover

Colchester

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Worthing

Ramsgate

Dartford

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Winchester

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.