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

United Airlines is the most popular carrier 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 old do you have to be to fly from London to Key West Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$495 Cheap Flights from London to Key West in 2026/27

Find the cheapest flights from London to Key West

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:05 pm - 11:24 amLHR London Heathrow-EYW Key West

52h 19m2 stops Zurich Chicago O'Hare Intl

4:10 pm - 6:40 amEYW Key West-LHR London Heathrow

33h 30m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

$640United Airlines

Wed, Dec 2 - Wed, Dec 9

8:00 am - 1:52 pmLHR London Heathrow-EYW Key West

34h 52m1 stop Newark

2:51 pm - 8:35 pmEYW Key West-LHR London Heathrow

24h 44m1 stop Newark

$679United Airlines

Mon, Nov 9 - Wed, Nov 18

1:35 pm - 3:29 pmLHR London Heathrow-EYW Key West

30h 54m1 stop Chicago O'Hare Intl

4:10 pm - 7:55 amEYW Key West-LHR London Heathrow

34h 45m1 stop Chicago O'Hare Intl

$680United Airlines

Thu, Nov 12 - Fri, Nov 20

10:25 am - 11:24 amLHR London Heathrow-EYW Key West

29h 59m1 stop Chicago O'Hare Intl

12:05 pm - 7:55 amEYW Key West-LHR London Heathrow

14h 50m1 stop Chicago O'Hare Intl

$681United Airlines

Wed, Dec 2 - Wed, Dec 9

1:35 pm - 2:25 pmLHR London Heathrow-EYW Key West

29h 50m2 stops Chicago O'Hare Intl Newark

3:28 pm - 9:10 amEYW Key West-LHR London Heathrow

12h 42m1 stop Newark

$694United Airlines

Sun, Feb 28 - Wed, Mar 10

10:00 am - 3:55 pmLHR London Heathrow-EYW Key West

34h 55m1 stop Houston George Bush Intcntl

6:20 pm - 9:20 pmEYW Key West-LHR London Heathrow

22h 00m2 stops Washington, D.C. Dulles Intl Newark

$695United Airlines

Fri, Mar 5 - Tue, Mar 9

12:00 pm - 5:07 pmLHR London Heathrow-EYW Key West

34h 07m1 stop Newark

4:45 pm - 7:40 amEYW Key West-LHR London Heathrow

33h 55m1 stop Houston George Bush Intcntl

$711United Airlines

Sat, Mar 6 - Sat, Mar 13

10:00 am - 3:55 pmLHR London Heathrow-EYW Key West

34h 55m1 stop Houston George Bush Intcntl

4:45 pm - 9:10 amEYW Key West-LHR London Heathrow

35h 25m2 stops Houston George Bush Intcntl Newark

$721United Airlines

Sat, Mar 6 - Sat, Mar 13

10:00 am - 3:55 pmLHR London Heathrow-EYW Key West

34h 55m1 stop Houston George Bush Intcntl

4:45 pm - 9:20 pmEYW Key West-LHR London Heathrow

23h 35m2 stops Houston George Bush Intcntl Newark

$724United Airlines

Fri, Mar 5 - Tue, Mar 9

1:45 pm - 11:24 amLHR London Heathrow-EYW Key West

50h 39m2 stops Zurich Chicago O'Hare Intl

12:05 pm - 5:55 amEYW Key West-LHR London Heathrow

12h 50m1 stop Chicago O'Hare Intl

$754United Airlines

Thu, Dec 3 - Thu, Dec 10

Cheap last minute flights

Enter your travel dates to find the best prices.

12:05 pm - 3:29 pmLHR London Heathrow-EYW Key West

31h 24m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

2:51 pm - 8:05 amEYW Key West-LHR London Heathrow

36h 14m2 stops Newark Zurich

$677United Airlines

Sun, Oct 25 - Wed, Nov 25

12:05 pm - 3:29 pmLHR London Heathrow-EYW Key West

31h 24m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

2:51 pm - 8:35 pmEYW Key West-LHR London Heathrow

24h 44m1 stop Newark

$680United Airlines

Sun, Oct 25 - Wed, Nov 25

8:00 am - 1:54 pmLHR London Heathrow-EYW Key West

33h 54m1 stop Newark

2:50 pm - 6:40 amEYW Key West-LHR London Heathrow

34h 50m2 stops Newark Washington, D.C. Reagan-National

$950United Airlines

Tue, Oct 27 - Sun, Nov 1

12:45 pm - 12:27 pmLHR London Heathrow-EYW Key West

27h 42m2 stops Toronto Pearson Intl Charlotte Douglas

11:25 am - 8:15 amEYW Key West-LHR London Heathrow

15h 50m1 stop Miami

$1,184Finnair

Wed, Oct 28 - Sat, Nov 28

11:15 am - 7:33 pmLHR London Heathrow-EYW Key West

12h 18m1 stop Miami

7:37 pm - 12:05 pmEYW Key West-LHR London Heathrow

11h 28m1 stop Miami

$1,202British Airways

Wed, Oct 28 - Sat, Nov 28

11:05 am - 3:24 pmLHR London Heathrow-EYW Key West

33h 19m1 stop Chicago O'Hare Intl

2:50 pm - 6:40 amEYW Key West-LHR London Heathrow

34h 50m2 stops Newark Washington, D.C. Dulles Intl

$1,221United Airlines

Fri, Oct 23 - Sun, Nov 1

10:00 am - 3:29 pmLHR London Heathrow-EYW Key West

34h 29m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

4:10 pm - 11:20 amEYW Key West-LHR London Heathrow

39h 10m2 stops Chicago O'Hare Intl Toronto Pearson Intl

$1,229United Airlines

Sat, Oct 24 - Fri, Oct 30

4:20 pm - 3:29 pmLHR London Heathrow-EYW Key West

27h 09m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

2:51 pm - 6:40 amEYW Key West-LHR London Heathrow

34h 49m2 stops Newark Washington, D.C. Dulles Intl

$1,251United Airlines

Wed, Oct 28 - Sat, Nov 28

8:00 am - 3:24 pmLHR London Heathrow-EYW Key West

36h 24m1 stop Chicago O'Hare Intl

2:50 pm - 8:05 amEYW Key West-LHR London Heathrow

37h 15m2 stops Newark Zurich

$1,264United Airlines

Fri, Oct 23 - Sat, Oct 31

4:20 pm - 1:54 pmLHR London Heathrow-EYW Key West

25h 34m2 stops Washington, D.C. Dulles Intl Newark

4:10 pm - 7:55 amEYW Key West-LHR London Heathrow

35h 45m1 stop Chicago O'Hare Intl

$1,292United Airlines

Mon, Oct 26 - Fri, Oct 30

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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

Dec 2

LHR12:05 pmLondon Heathrow

52h 19m

2 stops

EYW11:24 amKey West

Dec 9

EYW4:10 pmKey West

33h 30m

2 stops

LHR6:40 amLondon Heathrow

$640

United Airlines

Oct 25

LHR12:05 pmLondon Heathrow

31h 24m

2 stops

EYW3:29 pmKey West

Nov 25

EYW2:51 pmKey West

36h 14m

2 stops

LHR8:05 amLondon Heathrow

$677

United Airlines

Nov 9

LHR6:00 pmLondon Heathrow

26h 29m

2 stops

EYW3:29 pmKey West

Nov 18

EYW4:10 pmKey West

23h 25m

2 stops

LHR8:35 pmLondon Heathrow

$679

American Airlines flights from London to Key West

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

American Airlines

Nov 10

LHR4:45 pmLondon Heathrow

26h 01m

2 stops

EYW1:46 pmKey West

Nov 22

EYW7:57 pmKey West

29h 48m

1 stop

LHR6:45 amLondon Heathrow

$830

American Airlines

Nov 11

LHR4:40 pmLondon Heathrow

22h 08m

2 stops

EYW9:48 amKey West

Nov 17

EYW1:52 pmKey West

15h 08m

2 stops

LHR10:00 amLondon Heathrow

$878

American Airlines

Nov 14

LHR9:55 amLondon Heathrow

13h 01m

1 stop

EYW5:56 pmKey West

Nov 18

EYW3:41 pmKey West

12h 59m

1 stop

LHR9:40 amLondon Heathrow

$899

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Wed 12/2

12:05 pm-11:24 am

2 stops52h 19m

Key West

Wed 12/9

4:10 pm-6:40 am

2 stops33h 30m

$640

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Mon 11/9

8:00 am-1:52 pm

1 stop34h 52m

Key West

Wed 11/18

2:51 pm-8:35 pm

1 stop24h 44m

$679

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Thu 11/12

1:35 pm-3:29 pm

1 stop30h 54m

Key West

Fri 11/20

4:10 pm-7:55 am

1 stop34h 45m

$680

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Wed 12/2

10:25 am-11:24 am

1 stop29h 59m

Key West

Wed 12/9

12:05 pm-7:55 am

1 stop14h 50m

$681

Quickest round-trip

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Sun 2/28

1:35 pm-2:25 pm

2 stops29h 50m

Key West

Wed 3/10

3:28 pm-9:10 am

1 stop12h 42m

$694

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Fri 3/5

10:00 am-3:55 pm

1 stop34h 55m

Key West

Tue 3/9

6:20 pm-9:20 pm

2 stops22h 00m

$695

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Sat 3/6

12:00 pm-5:07 pm

1 stop34h 07m

Key West

Sat 3/13

4:45 pm-7:40 am

1 stop33h 55m

$711

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Sat 3/6

10:00 am-3:55 pm

1 stop34h 55m

Key West

Sat 3/13

4:45 pm-9:10 am

2 stops35h 25m

$721

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Fri 3/5

10:00 am-3:55 pm

1 stop34h 55m

Key West

Tue 3/9

4:45 pm-9:20 pm

2 stops23h 35m

$724

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Thu 12/3

1:45 pm-11:24 am

2 stops50h 39m

Key West

Thu 12/10

12:05 pm-5:55 am

1 stop12h 50m

$754

Flights are sorted by cheapest round-trip 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 low for flights on this route.

Typical prices usually range from $802 to $948.
The lowest price recently found on this route was $640.

What is the cheapest month to fly to Key West?

In general, August is the cheapest month to fly from London to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $591. If you are unable to visit Key West during the month of August, then departing from London during the month September is also very affordable. Most momondo users find prices during this month for around $758.

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 round-trip 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	$495
Fastest flight time	28h 19m
Direct flights	None

The best one-way flight to Key West from London in the past 72 hours is $495. The best round-trip flight deal from London to Key West found on momondo in the last 72 hours is $640.

The fastest flight from London to Key West takes 28h 19m

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?
The distance between London and Key West is about 4555.0 mi. In terms of flight time, this usually takes a little over 28h 19m.
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 old do you have to be to fly from London to Key West Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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Little Torch 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. All flights to Key West from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

Price alerts on flights to Key West from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Key West trip

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Cheap flights from London to Key West from $495

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Key West departing on 12/6. 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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United Airlines flights from London to Key West

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

American Airlines flights from London to Key West

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

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

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?

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

When to book flights from London to Key West

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from London to Key West

Traveling to a place near Key West?

Why use momondo?

An easier way to manage your Key West trip

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

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Florida

Cabin classes currently available on flights to Key West

List of cabin classes available on flights landing in Key West. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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