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Cheap flights from Key West to London from £170

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to London departing on 26/3. 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
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
18:28 - 10:50
EYW
-
LHR
11h 22m
1 stop
United Airlines Logo
13:00 - 17:45
LHR
-
EYW
32h 45m
2 stops
£475United Airlines
Thu, 5 Mar - Mon, 9 Mar
United Airlines Logo
07:00 - 06:30
EYW
-
LHR
18h 30m
2 stops
United Airlines Logo
13:00 - 17:45
LHR
-
EYW
32h 45m
2 stops
£481United Airlines
Thu, 5 Mar - Mon, 9 Mar
United Airlines Logo
14:35 - 09:20
EYW
-
LHR
13h 45m
1 stop
United Airlines Logo
09:30 - 14:51
LHR
-
EYW
34h 21m
2 stops
£482United Airlines
Mon, 6 Apr - Tue, 14 Apr
Delta Logo
11:43 - 10:40
EYW
-
LHR
17h 57m
2 stops
Delta Logo
15:15 - 10:50
LHR
-
EYW
24h 35m
1 stop
£500Delta
Wed, 8 Apr - Fri, 17 Apr
Delta Logo
11:46 - 06:25
EYW
-
LHR
13h 39m
1 stop
Delta Logo
06:15 - 17:23
LHR
-
EYW
16h 08m
2 stops
£518Delta
Thu, 16 Apr - Wed, 22 Apr
Scandinavian Airlines Logo
18:25 - 06:25
EYW
-
LHR
31h 00m
1 stop
Scandinavian Airlines Logo
09:40 - 19:41
LHR
-
EYW
15h 01m
2 stops
£536Scandinavian Airlines
Sun, 5 Apr - Sun, 12 Apr
Multiple Airlines Logo
13:06 - 10:00
EYW
-
LGW
15h 54m
1 stop
Multiple Airlines Logo
13:05 - 11:11
LGW
-
EYW
27h 06m
2 stops
£693Multiple Airlines
Mon, 6 Apr - Tue, 14 Apr
Multiple Airlines Logo
12:25 - 10:00
EYW
-
LGW
40h 35m
2 stops
Multiple Airlines Logo
14:00 - 12:26
LGW
-
EYW
27h 26m
1 stop
£710Multiple Airlines
Sun, 5 Apr - Sun, 12 Apr
British Airways Logo
15:51 - 10:50
EYW
-
LGW
37h 59m
2 stops
British Airways Logo
11:45 - 19:15
LGW
-
EYW
36h 30m
2 stops
£1,000British Airways
Wed, 25 Feb - Sun, 1 Mar
British Airways Logo
15:51 - 19:00
EYW
-
LGW
46h 09m
2 stops
British Airways Logo
11:45 - 19:15
LGW
-
EYW
36h 30m
2 stops
£1,082British Airways
Wed, 25 Feb - Sun, 1 Mar

Delta flights from Key West to London

Our best Delta deals on Key West to London flight tickets
Delta
8 Apr
EYW11:43Key West
17h 57m
2 stops
LHR10:40London Heathrow
17 Apr
LHR15:15London Heathrow
24h 35m
1 stop
EYW10:50Key West
£500
Delta
16 Apr
EYW11:46Key West
13h 39m
1 stop
LHR06:25London Heathrow
22 Apr
LHR06:15London Heathrow
16h 08m
2 stops
EYW17:23Key West
£518
Delta
23 Apr
EYW14:40Key West
11h 05m
1 stop
LHR06:45London Heathrow
29 Apr
LHR09:20London Heathrow
13h 03m
1 stop
EYW17:23Key West
£534

British Airways flights from Key West to London

Our best British Airways deals on Key West to London flight tickets
British Airways
21 Feb
EYW19:36Key West
41h 44m
2 stops
LHR18:20London Heathrow
28 Feb
LHR19:40London Heathrow
28h 35m
2 stops
EYW19:15Key West
£586
British Airways
5 Apr
EYW19:42Key West
10h 23m
1 stop
LHR11:05London Heathrow
12 Apr
LHR18:45London Heathrow
33h 13m
2 stops
EYW22:58Key West
£632
British Airways
25 Feb
EYW15:51Key West
37h 59m
2 stops
LGW10:50London Gatwick
1 Mar
LGW11:45London Gatwick
36h 30m
2 stops
EYW19:15Key West
£1,000

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 9 February 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

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/3

18:28-10:50

1 stop11h 22m

London Heathrow

Mon 9/3

13:00-17:45

2 stops32h 45m

£475

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/3

07:00-06:30

2 stops18h 30m

London Heathrow

Mon 9/3

13:00-17:45

2 stops32h 45m

£481

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 6/4

14:35-09:20

1 stop13h 45m

London Heathrow

Tue 14/4

09:30-14:51

2 stops34h 21m

£482

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 8/4

11:43-10:40

2 stops17h 57m

London Heathrow

Fri 17/4

15:15-10:50

1 stop24h 35m

£500

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 16/4

11:46-06:25

1 stop13h 39m

London Heathrow

Wed 22/4

06:15-17:23

2 stops16h 08m

£518

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 5/4

18:25-06:25

1 stop31h 00m

London Heathrow

Sun 12/4

09:40-19:41

2 stops15h 01m

£536

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

£693

Key WestLondon

EYW - LGW

EYWLGW

Key West

Sun 5/4

12:25-10:00

2 stops40h 35m

London Gatwick

Sun 12/4

14:00-12:26

1 stop27h 26m

£710

Key WestLondon

EYW - LGW

EYWLGW

Key West

Wed 25/2

15:51-10:50

2 stops37h 59m

London Gatwick

Sun 1/3

11:45-19:15

2 stops36h 30m

£1,000

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

£1,082

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

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

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

Virgin Atlantic is the most popular carrier operating from Key West to London

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 22m

Direct flights

None
The fastest flight from Key West to London takes 11h 22m
There are no direct flights from Key West to London. There are no popular flight routes from Key West to London.
Search flight deals

  • 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 22m.

  • 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.

Travelling to a place near London?

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

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