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Cheap flights from Key West to London from £239

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 21/10. 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
21:42 - 10:00
EYW
-
LGW
31h 18m
1 stop
Multiple Airlines Logo
14:00 - 09:10
LGW
-
EYW
24h 10m
1 stop
£589Multiple Airlines
Thu, 13 Aug - Wed, 19 Aug
British Airways Logo
20:03 - 06:45
EYW
-
LHR
30h 42m
1 stop
British Airways Logo
07:30 - 19:29
LHR
-
EYW
16h 59m
2 stops
£636British Airways
Tue, 27 Oct - Tue, 3 Nov
British Airways Logo
20:03 - 06:45
EYW
-
LHR
30h 42m
1 stop
British Airways Logo
07:30 - 19:29
LHR
-
EYW
16h 59m
2 stops
£639British Airways
Tue, 27 Oct - Tue, 3 Nov
British Airways Logo
20:03 - 06:45
EYW
-
LHR
30h 42m
1 stop
British Airways Logo
11:15 - 19:29
LHR
-
EYW
13h 14m
1 stop
£656British Airways
Tue, 27 Oct - Tue, 3 Nov
British Airways Logo
20:03 - 06:45
EYW
-
LHR
30h 42m
1 stop
British Airways Logo
11:15 - 19:29
LHR
-
EYW
13h 14m
1 stop
£659British Airways
Tue, 27 Oct - Tue, 3 Nov
British Airways Logo
13:43 - 06:55
EYW
-
LHR
12h 12m
1 stop
British Airways Logo
20:00 - 19:33
LHR
-
EYW
28h 33m
2 stops
£661British Airways
Wed, 7 Oct - Mon, 12 Oct
British Airways Logo
13:43 - 22:15
EYW
-
LHR
27h 32m
2 stops
British Airways Logo
20:00 - 19:33
LHR
-
EYW
28h 33m
2 stops
£664British Airways
Wed, 7 Oct - Mon, 12 Oct
Virgin Atlantic Logo
13:59 - 13:15
EYW
-
LHR
18h 16m
1 stop
Virgin Atlantic Logo
06:30 - 19:57
LHR
-
EYW
18h 27m
2 stops
£689Virgin Atlantic
Tue, 18 Aug - Wed, 26 Aug
Delta Logo
11:48 - 07:15
EYW
-
LHR
14h 27m
1 stop
Delta Logo
06:30 - 20:00
LHR
-
EYW
18h 30m
2 stops
£690Delta
Tue, 1 Sep - Tue, 8 Sep
Delta Logo
13:59 - 12:05
EYW
-
LHR
17h 06m
2 stops
Delta Logo
06:30 - 17:20
LHR
-
EYW
15h 50m
2 stops
£693Delta
Tue, 18 Aug - Wed, 26 Aug

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Delta flights from Key West to London

Our best Delta deals on Key West to London flight tickets
Delta
1 Sept
EYW11:48Key West
14h 27m
1 stop
LHR07:15London Heathrow
8 Sept
LHR06:30London Heathrow
18h 30m
2 stops
EYW20:00Key West
£690
Delta
18 Aug
EYW13:59Key West
17h 06m
2 stops
LHR12:05London Heathrow
26 Aug
LHR06:30London Heathrow
15h 50m
2 stops
EYW17:20Key West
£693
Delta
12 Aug
EYW13:59Key West
11h 26m
1 stop
LHR06:25London Heathrow
18 Aug
LHR06:15London Heathrow
16h 05m
2 stops
EYW17:20Key West
£718

British Airways flights from Key West to London

Our best British Airways deals on Key West to London flight tickets
British Airways
27 Oct
EYW20:03Key West
30h 42m
1 stop
LHR06:45London Heathrow
3 Nov
LHR07:30London Heathrow
16h 59m
2 stops
EYW19:29Key West
£636
British Airways
27 Oct
EYW20:03Key West
30h 42m
1 stop
LHR06:45London Heathrow
3 Nov
LHR07:30London Heathrow
16h 59m
2 stops
EYW19:29Key West
£639
British Airways
27 Oct
EYW20:03Key West
30h 42m
1 stop
LHR06:45London Heathrow
3 Nov
LHR11:15London Heathrow
13h 14m
1 stop
EYW19:29Key West
£656

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 19 July 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

Thu 13/8

21:42-10:00

1 stop31h 18m

London Gatwick

Wed 19/8

14:00-09:10

1 stop24h 10m

£589

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 27/10

20:03-06:45

1 stop30h 42m

London Heathrow

Tue 3/11

07:30-19:29

2 stops16h 59m

£636

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 27/10

20:03-06:45

1 stop30h 42m

London Heathrow

Tue 3/11

07:30-19:29

2 stops16h 59m

£639

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 27/10

20:03-06:45

1 stop30h 42m

London Heathrow

Tue 3/11

11:15-19:29

1 stop13h 14m

£656

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 27/10

20:03-06:45

1 stop30h 42m

London Heathrow

Tue 3/11

11:15-19:29

1 stop13h 14m

£659

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 7/10

13:43-06:55

1 stop12h 12m

London Heathrow

Mon 12/10

20:00-19:33

2 stops28h 33m

£661

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 7/10

13:43-22:15

2 stops27h 32m

London Heathrow

Mon 12/10

20:00-19:33

2 stops28h 33m

£664

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 18/8

13:59-13:15

1 stop18h 16m

London Heathrow

Wed 26/8

06:30-19:57

2 stops18h 27m

£689

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 1/9

11:48-07:15

1 stop14h 27m

London Heathrow

Tue 8/9

06:30-20:00

2 stops18h 30m

£690
Fastest return journey

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 18/8

13:59-12:05

2 stops17h 06m

London Heathrow

Wed 26/8

06:30-17:20

2 stops15h 50m

£693

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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?

British Airways and Delta are the most popular carriers 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

14h 50m

Direct flights

None
The fastest flight from Key West to London takes 14h 50m
There are no direct flights from Key West to London. There are no popular flight routes from Key West to London.
Search flight deals

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 14h 50m.

  • 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
Wembley
Gatwick
Milton Keynes
Luton
Southend-on-Sea
Slough
Ipswich
Maidstone
Folkestone
Ilford
Canterbury
Guildford
Hastings
Hayes
Chichester
Bedford
Colchester
Harlow
Chelmsford

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