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 2 as of August 2025.

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.

£431 Cheap Flights from London Heathrow Airport to Key West in 2025

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Find the cheapest flights from London Heathrow Airport to Key West

Round-trip

One-way

Cheap return flights

09:55 - 18:59LHR-EYW

14h 04m1 stop

13:59 - 09:25EYW-LHR

14h 26m1 stop

£481British Airways

Find Deal

tor., 18 sep. - søn., 28 sep.

09:55 - 18:59LHR-EYW

14h 04m1 stop

19:31 - 21:40EYW-LHR

21h 09m2 stops

£484

Find Deal

lør., 13 sep. - lør., 20 sep.

06:10 - 18:59LHR-EYW

17h 49m2 stops

11:25 - 06:55EYW-LHR

14h 30m1 stop

£486American Airlines

Find Deal

søn., 14 sep. - søn., 21 sep.

06:15 - 18:59LHR-EYW

17h 44m2 stops

18:17 - 12:30EYW-LHR

13h 13m1 stop

£488American Airlines

Find Deal

lør., 13 sep. - lør., 20 sep.

17:25 - 10:55LHR-EYW

22h 30m1 stop

07:00 - 13:30EYW-LHR

25h 30m1 stop

£494Delta

Find Deal

søn., 14 sep. - søn., 21 sep.

06:30 - 17:12LHR-EYW

15h 42m2 stops

13:57 - 11:40EYW-LHR

16h 43m1 stop

£521Delta

Find Deal

ons., 22 okt. - tor., 6 nov.

15:50 - 14:29LHR-EYW

27h 39m2 stops

16:00 - 11:15EYW-LHR

14h 15m1 stop

£524United Airlines

Find Deal

man., 20 okt. - tir., 4 nov.

16:40 - 14:29LHR-EYW

26h 49m2 stops

15:05 - 10:50EYW-LHR

14h 45m2 stops

£526United Airlines

Find Deal

man., 20 okt. - tor., 6 nov.

12:35 - 17:15LHR-EYW

33h 40m2 stops

18:10 - 08:55EYW-LHR

33h 45m2 stops

£533Virgin Atlantic

Find Deal

tor., 18 sep. - søn., 28 sep.

09:55 - 17:15LHR-EYW

36h 20m2 stops

18:10 - 10:30EYW-LHR

35h 20m2 stops

£582Virgin Atlantic

Find Deal

tor., 18 sep. - søn., 28 sep.

American Airlines flights from London Heathrow Airport to Key West

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

American Airlines

14 Sept

LHR06:10London Heathrow

17h 49m

2 stops

EYW18:59Key West

21 Sept

EYW11:25Key West

14h 30m

1 stop

LHR06:55London Heathrow

£486

Find similar

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

£488

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

£505

Find similar

Delta flights from London Heathrow Airport to Key West

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

Delta

14 Sept

LHR17:25London Heathrow

22h 30m

1 stop

EYW10:55Key West

21 Sept

EYW07:00Key West

25h 30m

1 stop

LHR13:30London Heathrow

£494

Find similar

Delta

22 Oct

LHR06:30London Heathrow

15h 42m

2 stops

EYW17:12Key West

6 Nov

EYW13:57Key West

16h 43m

1 stop

LHR11:40London Heathrow

£521

Find similar

Delta

22 Oct

LHR06:30London Heathrow

15h 42m

2 stops

EYW17:12Key West

4 Nov

EYW07:40Key West

17h 45m

1 stop

LHR06:25London Heathrow

£524

Find similar

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

tor. 18/9

09:55-18:59

1 stop14h 04m

Key West

søn. 28/9

13:59-09:25

1 stop14h 26m

£481

LondonKey West

LHR - EYW

LHREYW

London Heathrow

lør. 13/9

09:55-18:59

1 stop14h 04m

Key West

lør. 20/9

19:31-21:40

2 stops21h 09m

£484

LondonKey West

LHR - EYW

LHREYW

London Heathrow

søn. 14/9

06:10-18:59

2 stops17h 49m

Key West

søn. 21/9

11:25-06:55

1 stop14h 30m

£486

LondonKey West

LHR - EYW

LHREYW

London Heathrow

lør. 13/9

06:15-18:59

2 stops17h 44m

Key West

lør. 20/9

18:17-12:30

1 stop13h 13m

£488

LondonKey West

LHR - EYW

LHREYW

London Heathrow

søn. 14/9

17:25-10:55

1 stop22h 30m

Key West

søn. 21/9

07:00-13:30

1 stop25h 30m

£494

LondonKey West

LHR - EYW

LHREYW

London Heathrow

ons. 22/10

06:30-17:12

2 stops15h 42m

Key West

tor. 6/11

13:57-11:40

1 stop16h 43m

£521

LondonKey West

LHR - EYW

LHREYW

London Heathrow

man. 20/10

15:50-14:29

2 stops27h 39m

Key West

tir. 4/11

16:00-11:15

1 stop14h 15m

£524

LondonKey West

LHR - EYW

LHREYW

London Heathrow

man. 20/10

16:40-14:29

2 stops26h 49m

Key West

tor. 6/11

15:05-10:50

2 stops14h 45m

£526

LondonKey West

LHR - EYW

LHREYW

London Heathrow

tor. 18/9

12:35-17:15

2 stops33h 40m

Key West

søn. 28/9

18:10-08:55

2 stops33h 45m

£533

LondonKey West

LHR - EYW

LHREYW

London Heathrow

tor. 18/9

09:55-17:15

2 stops36h 20m

Key West

søn. 28/9

18:10-10:30

2 stops35h 20m

£582

Flights are sorted by cheapest return flights first.

Sorted 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

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 May is also cheap. Prices for this month can be found on momondo for an average of £504.

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 Heathrow Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £530. 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 £661.

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 Heathrow Airport to Key West in the morning for as low as £582. 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 £829. 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 Heathrow Airport to Key West flights?

You could potentially save up to 15% 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

Best price found	£481
Fastest flight time	12h 21m
Direct flights	None
Airports in Key West	1 airport

The best flight deal from London Heathrow Airport to Key West found on momondo in the last 72 hours is £481

The fastest flight from London Heathrow Airport to Key West takes 12h 21m

There are no direct flights from London Heathrow Airport to Key West. Popular non-direct route for this connection is London Heathrow Airport - Key West Airport.

There is 1 airport near Key West: Key West (EYW)

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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 12h 21m.
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 2 as of August 2025.
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 (54% of total bookings). The next most popular airline is British Airways (46%).

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
Virgin Atlantic	PriceFrom £436	Free Cancellation	Rating 7.4 655 reviews		Search Virgin Atlantic flights
British Airways	PriceFrom £455	Free Cancellation	Rating 6.6 7,222 reviews		Search British Airways 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.