Which airlines fly to Key West?

Virgin Atlantic, American Airlines and British Airways are the top three most popular airlines that fly to Key West from London Heathrow Airport according to our data. Virgin Atlantic is the first choice among our users, with 55% of people opting to fly with this airline when travelling to Key West. Keep in mind that there are 3 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.

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

Air France is the most popular carrier operating from London Heathrow to Key West

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

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

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

The number of operators available for flights from London Heathrow Airport to Key West Airport is 3 as of February 2026.

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

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 London Heathrow Airport to Key West Airport.

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

The travel and health documents you'll need for your trip to Key West Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£417 Cheap Flights from London Heathrow Airport to Key West in 2026

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Find the cheapest flights from London Heathrow Airport to Key West

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

06:10 - 22:58

LHR

EYW

21h 48m

2 stops

11:35 - 09:00

EYW

LHR

16h 25m

1 stop

£548British Airways

Thu, 16 Apr - Sat, 25 Apr

06:15 - 22:58

LHR

EYW

21h 43m

2 stops

11:35 - 11:05

EYW

LHR

18h 30m

1 stop

£554British Airways

Thu, 16 Apr - Sat, 25 Apr

06:15 - 22:58

LHR

EYW

21h 43m

2 stops

11:35 - 09:00

EYW

LHR

16h 25m

1 stop

£554British Airways

Thu, 16 Apr - Sat, 25 Apr

16:40 - 13:31

LHR

EYW

25h 51m

2 stops

15:47 - 06:45

EYW

LHR

33h 58m

1 stop

£556United Airlines

Tue, 7 Apr - Mon, 13 Apr

08:00 - 14:51

LHR

EYW

35h 51m

1 stop

15:47 - 06:45

EYW

LHR

33h 58m

1 stop

£558United Airlines

Tue, 7 Apr - Mon, 13 Apr

15:35 - 22:58

LHR

EYW

12h 23m

1 stop

11:35 - 09:00

EYW

LHR

16h 25m

1 stop

£561Finnair

Thu, 16 Apr - Sat, 25 Apr

15:35 - 22:58

LHR

EYW

12h 23m

1 stop

14:01 - 06:55

EYW

LHR

11h 54m

1 stop

£562Finnair

Thu, 16 Apr - Sat, 25 Apr

15:35 - 22:58

LHR

EYW

12h 23m

1 stop

14:01 - 06:55

EYW

LHR

11h 54m

1 stop

£566Finnair

Thu, 16 Apr - Sat, 25 Apr

16:40 - 16:42

LHR

EYW

29h 02m

1 stop

18:22 - 06:55

EYW

LHR

31h 33m

1 stop

£574United Airlines

Tue, 7 Apr - Mon, 13 Apr

16:40 - 13:31

LHR

EYW

25h 51m

2 stops

15:47 - 05:55

EYW

LHR

33h 08m

2 stops

£592United Airlines

Tue, 7 Apr - Mon, 13 Apr

Lufthansa flights from London Heathrow Airport to Key West

Our best Lufthansa deals on London Heathrow Airport to Key West flight tickets

Lufthansa

7 Apr

LHR07:45London Heathrow

37h 57m

2 stops

EYW16:42Key West

13 Apr

EYW18:22Key West

31h 23m

2 stops

LHR06:45London Heathrow

£603

Lufthansa

28 Mar

LHR18:00London Heathrow

27h 39m

1 stop

EYW17:39Key West

4 Apr

EYW16:38Key West

13h 57m

1 stop

LHR11:35London Heathrow

£772

Lufthansa

13 Feb

LHR10:25London Heathrow

16h 44m

1 stop

EYW22:09Key West

15 Feb

EYW18:40Key West

31h 00m

1 stop

LHR06:40London Heathrow

£797

United Airlines flights from London Heathrow Airport to Key West

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

United Airlines

7 Apr

LHR16:40London Heathrow

25h 51m

2 stops

EYW13:31Key West

13 Apr

EYW15:47Key West

33h 58m

1 stop

LHR06:45London Heathrow

£556

United Airlines

7 Apr

LHR11:05London Heathrow

34h 37m

2 stops

EYW16:42Key West

13 Apr

EYW15:47Key West

33h 58m

1 stop

LHR06:45London Heathrow

£558

United Airlines

7 Apr

LHR16:40London Heathrow

29h 02m

1 stop

EYW16:42Key West

13 Apr

EYW18:22Key West

31h 33m

1 stop

LHR06:55London Heathrow

£574

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 16/4

06:10-22:58

2 stops21h 48m

Key West

Sat 25/4

11:35-09:00

1 stop16h 25m

£548

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 16/4

06:15-22:58

2 stops21h 43m

Key West

Sat 25/4

11:35-11:05

1 stop18h 30m

£554

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 16/4

06:15-22:58

2 stops21h 43m

Key West

Sat 25/4

11:35-09:00

1 stop16h 25m

£554

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 7/4

16:40-13:31

2 stops25h 51m

Key West

Mon 13/4

15:47-06:45

1 stop33h 58m

£556

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 7/4

08:00-14:51

1 stop35h 51m

Key West

Mon 13/4

15:47-06:45

1 stop33h 58m

£558

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 16/4

15:35-22:58

1 stop12h 23m

Key West

Sat 25/4

11:35-09:00

1 stop16h 25m

£561

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 16/4

15:35-22:58

1 stop12h 23m

Key West

Sat 25/4

14:01-06:55

1 stop11h 54m

£562

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 16/4

15:35-22:58

1 stop12h 23m

Key West

Sat 25/4

14:01-06:55

1 stop11h 54m

£566

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 7/4

16:40-16:42

1 stop29h 02m

Key West

Mon 13/4

18:22-06:55

1 stop31h 33m

£574

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 7/4

16:40-13:31

2 stops25h 51m

Key West

Mon 13/4

15:47-05:55

2 stops33h 08m

£592

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport 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

Prices

Airlines

What is the cheapest month to fly to Key West?

If you aren’t able to travel to Key West during the month of May, then flying in November is also cheap. Prices for this month can be found on momondo for an average of £498.

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

You could potentially save up to 14% on your flight if you consider stops on a London Heathrow Airport to Key West flight.

When to book flights from London Heathrow Airport to Key West

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

Estimated return price

Cheap London Heathrow Airport to Key West (LHR to EYW) flight deals and tips

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

Fastest flight time	13h 44m
Direct flights	None

The fastest flight from London Heathrow Airport to Key West takes 13h 44m

There are no direct flights from London Heathrow Airport to Key West. There are no popular flight routes from London Heathrow Airport to Key West.

Search flight deals

How far is London Heathrow to Key West by plane?
The distance between London Heathrow and Key West is about 4541.3 mi. A reasonable flight in good conditions will take 13h 44m.
When did momondo last update prices for flights from London Heathrow Airport to Key West Airport?
Prices for flights from London Heathrow Airport to Key West Airport are refreshed on a daily basis.
How many operators does momondo search for flights from London Heathrow Airport to Key West Airport?
The number of operators available for flights from London Heathrow Airport to Key West Airport is 3 as of February 2026.
How old do you have to be to fly from London Heathrow Airport to Key West Airport?
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 London Heathrow Airport to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The travel and health documents you'll need for your trip to Key West Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London Heathrow Airport to Key West?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to Key West is Virgin Atlantic (55% of total bookings). The next most popular airlines are American Airlines (24%) and British Airways (21%).

Best airlines flying from London Heathrow Airport to Key West

Compare and see reviews for airlines that fly from London Heathrow Airport to Key West with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £443	Free Cancellation	Rating 6.7 7,736 reviews	Search British Airways flights
Virgin Atlantic	PriceFrom £483	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
American Airlines	PriceFrom £508	Free Cancellation	Rating 7.2 11,275 reviews	Search American Airlines flights

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Why use momondo?

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

Finding the right flight to Key West from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Key West quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Key West from London which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential London to Key West flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Key West right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Key West flights. All you need is a valid email address and we will do the rest; it is that quick and easy.