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

British Airways and United Airlines are the most popular carriers operating from London to Key West

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?

The number of operators available for flights from London to Key West Airport is 2 as of September 2026.

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.

£394 Cheap Flights from London to Key West in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London to Key West

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

18:00 - 13:29LHR London Heathrow-EYW Key West

24h 29m1 stop Newark

16:00 - 13:00EYW Key West-LHR London Heathrow

16h 00m1 stop Chicago O'Hare Intl

£494United Airlines

Fri, 9 Oct - Sat, 24 Oct

07:45 - 13:29LHR London Heathrow-EYW Key West

34h 44m1 stop Newark

16:00 - 11:25EYW Key West-LHR London Heathrow

38h 25m2 stops Chicago O'Hare Intl Newark

£494United Airlines

Fri, 9 Oct - Sat, 24 Oct

18:00 - 13:29LHR London Heathrow-EYW Key West

24h 29m1 stop Newark

16:00 - 13:00EYW Key West-LHR London Heathrow

16h 00m1 stop Chicago O'Hare Intl

£494United Airlines

Fri, 9 Oct - Sat, 24 Oct

16:40 - 13:29LHR London Heathrow-EYW Key West

25h 49m2 stops Washington, D.C. Dulles Intl Newark

16:00 - 09:25EYW Key West-LHR London Heathrow

36h 25m2 stops Chicago O'Hare Intl Newark

£494United Airlines

Fri, 9 Oct - Sat, 24 Oct

08:55 - 17:11LHR London Heathrow-EYW Key West

13h 16m1 stop Atlanta Hartsfield-Jackson

18:06 - 07:50EYW Key West-LHR London Heathrow

56h 44m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

£635Virgin Atlantic

Tue, 8 Dec - Wed, 9 Dec

12:15 - 19:33LHR London Heathrow-EYW Key West

12h 18m1 stop Miami

13:43 - 06:55EYW Key West-LHR London Heathrow

12h 12m1 stop Miami

£645British Airways

Wed, 14 Oct - Wed, 21 Oct

11:15 - 20:01LHR London Heathrow-EYW Key West

13h 46m1 stop Atlanta Hartsfield-Jackson

14:00 - 06:25EYW Key West-LHR London Heathrow

11h 25m1 stop Atlanta Hartsfield-Jackson

£661Virgin Atlantic

Mon, 12 Oct - Mon, 19 Oct

09:55 - 19:33LHR London Heathrow-EYW Key West

14h 38m1 stop Miami

20:03 - 12:35EYW Key West-LHR London Heathrow

11h 32m1 stop Miami

£669British Airways

Tue, 13 Oct - Tue, 20 Oct

09:55 - 19:33LHR London Heathrow-EYW Key West

14h 38m1 stop Miami

20:03 - 12:35EYW Key West-LHR London Heathrow

11h 32m1 stop Miami

£670British Airways

Tue, 13 Oct - Tue, 20 Oct

11:15 - 20:01LHR London Heathrow-EYW Key West

13h 46m1 stop Atlanta Hartsfield-Jackson

14:00 - 13:15EYW Key West-LHR London Heathrow

18h 15m1 stop Atlanta Hartsfield-Jackson

£694Virgin Atlantic

Thu, 15 Oct - Thu, 22 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

20:00 - 18:31LHR London Heathrow-EYW Key West

27h 31m2 stops Madrid Barajas Miami

13:43 - 09:00EYW Key West-LHR London Heathrow

14h 17m1 stop Miami

£832British Airways

Mon, 7 Sep - Wed, 7 Oct

20:55 - 20:00LHR London Heathrow-EYW Key West

28h 05m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

11:51 - 07:55EYW Key West-LHR London Heathrow

15h 04m2 stops Atlanta Hartsfield-Jackson Orlando

£835Virgin Atlantic

Mon, 7 Sep - Wed, 7 Oct

09:55 - 19:39LHR London Heathrow-EYW Key West

14h 44m1 stop Miami

13:43 - 09:00EYW Key West-LHR London Heathrow

14h 17m1 stop Miami

£839British Airways

Mon, 7 Sep - Wed, 7 Oct

19:15 - 18:31LCY London City-EYW Key West

28h 16m2 stops Madrid Barajas Miami

13:43 - 13:10EYW Key West-LCY London City

18h 27m2 stops Miami Barcelona-El Prat

£874British Airways

Mon, 7 Sep - Wed, 7 Oct

17:00 - 17:23LGW London Gatwick-EYW Key West

29h 23m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

18:10 - 09:25EYW Key West-LGW London Gatwick

34h 15m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

£882Air France

Mon, 7 Sep - Wed, 7 Oct

12:40 - 13:29LHR London Heathrow-EYW Key West

29h 49m2 stops Halifax Intl Newark

14:50 - 10:50EYW Key West-LHR London Heathrow

16h 00m2 stops Newark Washington, D.C. Dulles Intl

£898United Airlines

Mon, 7 Sep - Sun, 25 Oct

12:40 - 13:29LHR London Heathrow-EYW Key West

53h 49m2 stops Halifax Intl Newark

14:50 - 08:25EYW Key West-LHR London Heathrow

13h 35m1 stop Newark

£898United Airlines

Mon, 7 Sep - Sun, 25 Oct

11:15 - 19:57LHR London Heathrow-EYW Key West

13h 42m1 stop Atlanta Hartsfield-Jackson

18:10 - 06:25EYW Key West-LHR London Heathrow

32h 15m1 stop Atlanta Hartsfield-Jackson

£910Virgin Atlantic

Mon, 7 Sep - Sun, 25 Oct

14:00 - 09:24LGW London Gatwick-EYW Key West

48h 24m3 stops Orlando Charleston Tampa

10:59 - 08:15EYW Key West-LGW London Gatwick

17h 16m1 stop Orlando

£923Multiple Airlines

Mon, 7 Sep - Sun, 25 Oct

19:15 - 18:31LCY London City-EYW Key West

28h 16m2 stops Madrid Barajas Miami

13:43 - 08:50EYW Key West-LCY London City

15h 07m2 stops Miami Madrid Barajas

£964British Airways

Mon, 7 Sep - Sun, 25 Oct

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United Airlines flights from London to Key West

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

United Airlines

9 Oct

LHR18:00London Heathrow

24h 29m

1 stop

EYW13:29Key West

24 Oct

EYW16:00Key West

16h 00m

1 stop

LHR13:00London Heathrow

£494

United Airlines

9 Oct

LHR18:00London Heathrow

24h 29m

1 stop

EYW13:29Key West

24 Oct

EYW16:00Key West

16h 00m

1 stop

LHR13:00London Heathrow

£494

United Airlines

9 Oct

LHR18:00London Heathrow

24h 29m

1 stop

EYW13:29Key West

24 Oct

EYW16:00Key West

16h 00m

1 stop

LHR13:00London Heathrow

£495

British Airways flights from London to Key West

Our best British Airways deals on London to Key West flight tickets

British Airways

14 Oct

LHR12:15London Heathrow

12h 18m

1 stop

EYW19:33Key West

21 Oct

EYW13:43Key West

12h 12m

1 stop

LHR06:55London Heathrow

£645

British Airways

13 Oct

LHR09:55London Heathrow

14h 38m

1 stop

EYW19:33Key West

20 Oct

EYW20:03Key West

11h 32m

1 stop

LHR12:35London Heathrow

£669

British Airways

13 Oct

LHR09:55London Heathrow

14h 38m

1 stop

EYW19:33Key West

20 Oct

EYW20:03Key West

11h 32m

1 stop

LHR12:35London Heathrow

£670

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Fri 9/10

18:00-13:29

1 stop24h 29m

Key West

Sat 24/10

16:00-13:00

1 stop16h 00m

£494

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Fri 9/10

07:45-13:29

1 stop34h 44m

Key West

Sat 24/10

16:00-11:25

2 stops38h 25m

£494

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Fri 9/10

18:00-13:29

1 stop24h 29m

Key West

Sat 24/10

16:00-13:00

1 stop16h 00m

£494

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Fri 9/10

16:40-13:29

2 stops25h 49m

Key West

Sat 24/10

16:00-09:25

2 stops36h 25m

£494

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Tue 8/12

08:55-17:11

1 stop13h 16m

Key West

Wed 9/12

18:06-07:50

2 stops56h 44m

£635

Fastest return journey

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Wed 14/10

12:15-19:33

1 stop12h 18m

Key West

Wed 21/10

13:43-06:55

1 stop12h 12m

£645

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Mon 12/10

11:15-20:01

1 stop13h 46m

Key West

Mon 19/10

14:00-06:25

1 stop11h 25m

£661

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Tue 13/10

09:55-19:33

1 stop14h 38m

Key West

Tue 20/10

20:03-12:35

1 stop11h 32m

£669

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Tue 13/10

09:55-19:33

1 stop14h 38m

Key West

Tue 20/10

20:03-12:35

1 stop11h 32m

£670

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Thu 15/10

11:15-20:01

1 stop13h 46m

Key West

Thu 22/10

14:00-13:15

1 stop18h 15m

£694

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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

Prices are currently typical for flights on this route.

Typical prices usually range from £468 to £585.
The lowest price recently found on this route was £494.

What is the cheapest month to fly to Key West?

If you aren’t able to travel to Key West during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of £548.

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	£394
Fastest flight time	13h 02m
Direct flights	None

The best one-way flight to Key West from London in the past 72 hours is £394. The best return flight deal from London to Key West found on momondo in the last 72 hours is £494.

The fastest flight from London to Key West takes 13h 02m

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

Search flight deals

Frequently asked questions about flying from London to Key West

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 13h 02m.
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?
The number of operators available for flights from London to Key West Airport is 2 as of September 2026.
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?
momondo data reveals that the most frequently booked airline on the route from London to Key West is Virgin Atlantic, representing 57% of all bookings. The subsequent popular airline is British Airways at 43%.

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 Atlantic	PriceFrom £437	Free Cancellation	Rating 7.4 695 reviews		Search Virgin Atlantic flights
British Airways	PriceFrom £486	Free Cancellation	Rating 6.7 8,195 reviews		Search British Airways flights

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.