Which layover airport has the shortest connection time from Key West to London?

Charlotte (CLT) has the shortest average layover time for this route: 1h 39m.

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

British Airways is the most popular carrier operating from Key West to London

Which airport is the most popular layover for flights between Key West and London?

Atlanta (ATL) was the most common stop: 83% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Key West to London?

Flights connecting via Charlotte (CLT) have the shortest average one-way travel time: 11h 06m.

Which layover airport offers the lowest fares from Key West to London?

Flights via Atlanta (ATL) offer the lowest average round-trip price of $11,438.

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

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

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

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 Key West Airport to London.

What documentation or ID do you need to fly to London?

The travel and health documents required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$611 Cheap Flights from Key West to London in 2025/26

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Find the cheapest flights from Key West to London

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6:06 pm - 11:40 am

EYW

LHR

12h 34m1 stop

6:30 am - 7:40 pm

LHR

EYW

18h 10m2 stops

$629KLM

Sun, Jan 25 - Sun, Feb 1

2:45 pm - 11:55 am

EYW

LHR

16h 10m2 stops

6:30 am - 7:40 pm

LHR

EYW

18h 10m2 stops

$633Virgin Atlantic

Sun, Jan 25 - Sun, Feb 1

7:45 pm - 11:35 am

EYW

LHR

34h 50m2 stops

4:00 pm - 11:56 pm

LHR

EYW

36h 56m2 stops

$647British Airways

Sun, Jan 25 - Sun, Feb 1

2:45 pm - 7:50 am

EYW

LHR

12h 05m1 stop

8:55 am - 5:11 pm

LHR

EYW

13h 16m1 stop

$656KLM

Sun, Jan 25 - Sun, Feb 1

7:45 pm - 8:35 am

EYW

LHR

31h 50m1 stop

11:15 am - 7:10 pm

LHR

EYW

12h 55m1 stop

$659British Airways

Sun, Feb 1 - Tue, Feb 10

2:25 pm - 8:25 am

EYW

LHR

13h 00m1 stop

1:35 pm - 3:17 pm

LHR

EYW

30h 42m1 stop

$661United Airlines

Fri, Jan 30 - Tue, Feb 3

7:45 pm - 6:50 am

EYW

LHR

30h 05m1 stop

6:00 am - 11:56 pm

LHR

EYW

22h 56m2 stops

$663British Airways

Sun, Feb 1 - Tue, Feb 10

2:25 pm - 9:10 am

EYW

LHR

13h 45m1 stop

1:25 pm - 4:22 pm

LHR

EYW

31h 57m2 stops

$664United Airlines

Fri, Jan 30 - Tue, Feb 3

7:45 pm - 11:35 am

EYW

LHR

34h 50m2 stops

4:00 pm - 7:10 pm

LHR

EYW

32h 10m2 stops

$679British Airways

Sun, Jan 25 - Sun, Feb 1

7:45 pm - 6:50 am

EYW

LHR

30h 05m1 stop

11:15 am - 7:10 pm

LHR

EYW

12h 55m1 stop

$691British Airways

Sun, Feb 1 - Tue, Feb 10

British Airways flights from Key West to London

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

British Airways

Jan 25

EYW7:45 pmKey West

34h 50m

2 stops

LHR11:35 amLondon Heathrow

Feb 1

LHR4:00 pmLondon Heathrow

36h 56m

2 stops

EYW11:56 pmKey West

$647

Find similar

British Airways

Feb 1

EYW7:45 pmKey West

31h 50m

1 stop

LHR8:35 amLondon Heathrow

Feb 10

LHR11:15 amLondon Heathrow

12h 55m

1 stop

EYW7:10 pmKey West

$659

Find similar

British Airways

Feb 1

EYW7:45 pmKey West

30h 05m

1 stop

LHR6:50 amLondon Heathrow

Feb 10

LHR6:00 amLondon Heathrow

22h 56m

2 stops

EYW11:56 pmKey West

$663

Find similar

United Airlines flights from Key West to London

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

United Airlines

Jan 30

EYW2:25 pmKey West

13h 00m

1 stop

LHR8:25 amLondon Heathrow

Feb 3

LHR1:35 pmLondon Heathrow

30h 42m

1 stop

EYW3:17 pmKey West

$661

Find similar

United Airlines

Jan 30

EYW2:25 pmKey West

13h 45m

1 stop

LHR9:10 amLondon Heathrow

Feb 3

LHR1:25 pmLondon Heathrow

31h 57m

2 stops

EYW4:22 pmKey West

$664

Find similar

United Airlines

Dec 30

EYW5:10 pmKey West

23h 10m

2 stops

LHR9:20 pmLondon Heathrow

Jan 4

LHR9:00 amLondon Heathrow

34h 13m

2 stops

EYW2:13 pmKey West

$1,401

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/25

6:06 pm-11:40 am

1 stop12h 34m

London Heathrow

Sun 2/1

6:30 am-7:40 pm

2 stops18h 10m

$629

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/25

2:45 pm-11:55 am

2 stops16h 10m

London Heathrow

Sun 2/1

6:30 am-7:40 pm

2 stops18h 10m

$633

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/25

7:45 pm-11:35 am

2 stops34h 50m

London Heathrow

Sun 2/1

4:00 pm-11:56 pm

2 stops36h 56m

$647

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/25

2:45 pm-7:50 am

1 stop12h 05m

London Heathrow

Sun 2/1

8:55 am-5:11 pm

1 stop13h 16m

$656

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 2/1

7:45 pm-8:35 am

1 stop31h 50m

London Heathrow

Tue 2/10

11:15 am-7:10 pm

1 stop12h 55m

$659

Key WestLondon

EYW - LHR

EYWLHR

Key West

Fri 1/30

2:25 pm-8:25 am

1 stop13h 00m

London Heathrow

Tue 2/3

1:35 pm-3:17 pm

1 stop30h 42m

$661

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 2/1

7:45 pm-6:50 am

1 stop30h 05m

London Heathrow

Tue 2/10

6:00 am-11:56 pm

2 stops22h 56m

$663

Key WestLondon

EYW - LHR

EYWLHR

Key West

Fri 1/30

2:25 pm-9:10 am

1 stop13h 45m

London Heathrow

Tue 2/3

1:25 pm-4:22 pm

2 stops31h 57m

$664

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/25

7:45 pm-11:35 am

2 stops34h 50m

London Heathrow

Sun 2/1

4:00 pm-7:10 pm

2 stops32h 10m

$679

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 2/1

7:45 pm-6:50 am

1 stop30h 05m

London Heathrow

Tue 2/10

11:15 am-7:10 pm

1 stop12h 55m

$691

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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

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

Layovers

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from Key West to London is on a Thursday. Travelers who choose to depart for London on a Thursday will often find tickets for as low as $751. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $1,117. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from Key West in the morning is the least expensive time of day to depart. momondo users have found prices as low as $724 when looking at flights departing in the morning. Flights to London are more costly at noon, with an average ticket price of $934. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Key West to London

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

Estimated round-trip price

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

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

Fastest flight time	12h 34m
Direct flights	None

The fastest flight from Key West to London takes 12h 34m

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

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How far is Key West to London by plane?
Key West and London are 4555.0 mi apart from one another. Typically, this will take 12h 34m by plane in normal conditions.
When did momondo last update prices for flights from Key West Airport to London?
Prices for flights from Key West Airport to London are refreshed on a daily basis.
How old do you have to be to fly from Key West Airport to London?
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 Key West Airport to London.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Key West to London?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Key West to London is American Airlines (100% of total bookings).

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Crawley

Brentwood

Wembley

Romford

Watford

Ilford

Cobham

Folkestone

Uxbridge

Stansted

Chelmsford

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Key West to London. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to London from Key West with this policy.

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

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

Yes momondo offers price alerts on flights to London from Key West. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.