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Cheap flights from London to Key West from £457

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London to Key West departing on 7/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from London to Key West

Cheap return flights

British Airways Logo
06:05 - 19:29LHR-EYW
18h 24m2 stops
British Airways Logo
13:45 - 08:15EYW-LHR
13h 30m1 stop
£457British Airways
Find Deal
Fri, 7 Nov - Fri, 14 Nov
British Airways Logo
06:05 - 19:29LHR-EYW
18h 24m2 stops
British Airways Logo
13:45 - 09:15EYW-LHR
14h 30m2 stops
£463British Airways
Find Deal
Fri, 7 Nov - Fri, 14 Nov
Logo
09:55 - 18:59LHR-EYW
14h 04m1 stop
Logo
19:31 - 21:40EYW-LHR
21h 09m2 stops
£481
Find Deal
Sat, 13 Sep - Sat, 20 Sep
American Airlines Logo
06:15 - 18:59LHR-EYW
17h 44m2 stops
American Airlines Logo
18:17 - 12:30EYW-LHR
13h 13m1 stop
£485American Airlines
Find Deal
Sat, 13 Sep - Sat, 20 Sep
American Airlines Logo
20:10 - 11:49LHR-EYW
20h 39m2 stops
American Airlines Logo
11:25 - 06:55EYW-LHR
14h 30m1 stop
£502American Airlines
Find Deal
Thu, 18 Sep - Sun, 28 Sep
Logo
08:55 - 18:59LHR-EYW
15h 04m2 stops
Logo
19:31 - 21:40EYW-LHR
21h 09m2 stops
£522
Find Deal
Sat, 13 Sep - Sat, 20 Sep
Delta Logo
06:30 - 20:07LHR-EYW
18h 37m2 stops
Delta Logo
11:50 - 11:25EYW-LHR
18h 35m2 stops
£528Delta
Find Deal
Thu, 11 Sep - Thu, 18 Sep
Virgin Atlantic Logo
12:35 - 17:15LHR-EYW
33h 40m2 stops
Virgin Atlantic Logo
18:10 - 08:55EYW-LHR
33h 45m2 stops
£529Virgin Atlantic
Find Deal
Thu, 18 Sep - Sun, 28 Sep
Delta Logo
09:35 - 20:07LHR-EYW
15h 32m2 stops
Delta Logo
11:50 - 11:25EYW-LHR
18h 35m2 stops
£576Delta
Find Deal
Sat, 13 Sep - Sat, 20 Sep
Virgin Atlantic Logo
09:55 - 17:15LHR-EYW
36h 20m2 stops
Virgin Atlantic Logo
18:10 - 10:30EYW-LHR
35h 20m2 stops
£578Virgin Atlantic
Find Deal
Thu, 18 Sep - Sun, 28 Sep

American Airlines flights from London to Key West

Our best American Airlines deals on London to Key West flight tickets
American Airlines
13 Sept
LHR06:15London Heathrow
17h 44m
2 stops
EYW18:59Key West
20 Sept
EYW18:17Key West
13h 13m
1 stop
LHR12:30London Heathrow
£485
Find similar
American Airlines
18 Sept
LHR20:10London Heathrow
20h 39m
2 stops
EYW11:49Key West
28 Sept
EYW11:25Key West
14h 30m
1 stop
LHR06:55London Heathrow
£502
Find similar
American Airlines
11 Sept
LHR09:15London Heathrow
14h 44m
2 stops
EYW18:59Key West
18 Sept
EYW14:55Key West
13h 10m
1 stop
LHR09:05London Heathrow
£508
Find similar

British Airways flights from London to Key West

Our best British Airways deals on London to Key West flight tickets
British Airways
7 Nov
LHR06:05London Heathrow
18h 24m
2 stops
EYW19:29Key West
14 Nov
EYW13:45Key West
13h 30m
1 stop
LHR08:15London Heathrow
£457
Find similar
British Airways
7 Nov
LHR06:05London Heathrow
18h 24m
2 stops
EYW19:29Key West
14 Nov
EYW13:45Key West
14h 30m
2 stops
LHR09:15London Heathrow
£463
Find similar
British Airways
7 Nov
LHR09:45London Heathrow
14h 44m
1 stop
EYW19:29Key West
14 Nov
EYW13:45Key West
13h 30m
1 stop
LHR08:15London Heathrow
£473
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London to Key West 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 31 July 2025.
Use the filters below to find and compare flights from London to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 7/11

06:05-19:29

2 stops18h 24m

Key West

Fri 14/11

13:45-08:15

1 stop13h 30m

£457

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 7/11

06:05-19:29

2 stops18h 24m

Key West

Fri 14/11

13:45-09:15

2 stops14h 30m

£463

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sat 13/9

09:55-18:59

1 stop14h 04m

Key West

Sat 20/9

19:31-21:40

2 stops21h 09m

£481

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sat 13/9

06:15-18:59

2 stops17h 44m

Key West

Sat 20/9

18:17-12:30

1 stop13h 13m

£485

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 18/9

20:10-11:49

2 stops20h 39m

Key West

Sun 28/9

11:25-06:55

1 stop14h 30m

£502

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sat 13/9

08:55-18:59

2 stops15h 04m

Key West

Sat 20/9

19:31-21:40

2 stops21h 09m

£522

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 11/9

06:30-20:07

2 stops18h 37m

Key West

Thu 18/9

11:50-11:25

2 stops18h 35m

£528

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 18/9

12:35-17:15

2 stops33h 40m

Key West

Sun 28/9

18:10-08:55

2 stops33h 45m

£529

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sat 13/9

09:35-20:07

2 stops15h 32m

Key West

Sat 20/9

11:50-11:25

2 stops18h 35m

£576

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 18/9

09:55-17:15

2 stops36h 20m

Key West

Sun 28/9

18:10-10:30

2 stops35h 20m

£578

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Key West from

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

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 typical price of a round-trip flight between London and Key West?

What is the cheapest month to fly to Key West?

If you aren’t able to travel to Key West during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £523.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from London is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £527. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Key West on Thursday is £657.

What is the cheapest time of day to depart on your flight to Key West?

According to our data, the cheapest time of day to fly to Key West is in the morning. momondo users have found flights departing from London to Key West in the morning for as low as £578. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around £823. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on London to Key West flights?

You could potentially save up to 15% on your flight if you consider stops on a London to Key West flight.

When to book flights from London to Key West

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

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

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

Best price found

£457

Fastest flight time

12h 28m

Direct flights

None

Airports in Key West

1 airport
The best flight deal from London to Key West found on momondo in the last 72 hours is £457
The fastest flight from London to Key West takes 12h 28m
There are no direct flights from London to Key West. Popular non-direct routes for this connection are London Gatwick Airport - Key West Airport, London Heathrow Airport - Key West Airport and London City Airport - Key West Airport.
There is 1 airport near Key West: Key West (EYW)
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  • How far is London to Key West by plane?

    A flight from London to Key West will travel around 4555.0 mi. A reasonable flight in good conditions will take 12h 28m.

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

    Prices for flights from London to Key West Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from London to Key West Airport?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The necessary travel and health documents for your Key West Airport 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.

  • What is the most popular airline from London to Key West?

Best airlines flying from London to Key West

Compare and see reviews for airlines that fly from London to Key West with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £433Free CancellationRating
7.4
655 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £453Free CancellationRating
6.6
7,217 reviews
Search British Airways flights

Travelling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Key West. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for London to Key West flights to just show those with flexible booking policies.

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

Once you have performed a search for London to Key West 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 London to Key West right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Key West now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Key West and let you know when they change.

An easier way to manage your Key West trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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