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

British Airways, Delta, and American Airlines are the most popular carriers operating from Key West to London

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.

$781 Cheap Flights from Key West to London in 2026

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Find the cheapest flights from Key West to London

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:20 pm - 9:05 am

EYW

LHR

11h 45m

1 stop

8:15 am - 9:53 pm

LHR

EYW

18h 38m

2 stops

$959American Airlines

Thu, May 7 - Tue, May 12

3:58 pm - 10:45 pm

EYW

LHR

25h 47m

2 stops

6:45 pm - 10:58 pm

LHR

EYW

33h 13m

2 stops

$965British Airways

Mon, May 4 - Mon, May 11

7:33 am - 6:25 am

EYW

LHR

17h 52m

1 stop

8:55 pm - 5:23 pm

LHR

EYW

25h 28m

2 stops

$972KLM

Mon, May 4 - Mon, May 11

3:58 pm - 12:35 pm

EYW

LHR

15h 37m

1 stop

4:35 pm - 1:27 pm

LHR

EYW

25h 52m

1 stop

$995Multiple Airlines

Thu, May 7 - Tue, May 12

3:58 pm - 11:05 am

EYW

LHR

14h 07m

1 stop

9:15 am - 10:36 pm

LHR

EYW

18h 21m

1 stop

$1,004American Airlines

Sat, May 9 - Wed, May 20

4:47 pm - 11:35 am

EYW

LHR

13h 48m

1 stop

8:00 am - 3:07 pm

LHR

EYW

36h 07m

1 stop

$1,011United Airlines

Mon, May 4 - Mon, May 11

3:58 pm - 10:50 am

EYW

LGW

37h 52m

2 stops

8:40 pm - 10:58 pm

LGW

EYW

31h 18m

2 stops

$1,016British Airways

Mon, May 4 - Mon, May 11

11:48 am - 12:35 pm

EYW

LHR

19h 47m

2 stops

6:15 am - 7:49 pm

LHR

EYW

18h 34m

2 stops

$1,027Virgin Atlantic

Thu, May 21 - Thu, May 28

6:19 pm - 1:15 pm

EYW

LHR

13h 56m

1 stop

6:15 am - 7:49 pm

LHR

EYW

18h 34m

2 stops

$1,031Virgin Atlantic

Thu, May 21 - Thu, May 28

6:19 pm - 11:20 am

EYW

LHR

12h 01m

1 stop

11:15 am - 7:49 pm

LHR

EYW

13h 34m

1 stop

$1,044Virgin Atlantic

Thu, May 21 - Thu, May 28

Delta flights from Key West to London

Our best Delta deals on Key West to London flight tickets

Delta

Jul 13

EYW7:45 amKey West

18h 30m

2 stops

LHR7:15 amLondon Heathrow

Jul 22

LHR4:20 pmLondon Heathrow

26h 09m

2 stops

EYW1:29 pmKey West

$1,133

Delta

Jul 13

EYW7:45 amKey West

18h 25m

2 stops

LHR7:10 amLondon Heathrow

Jul 22

LHR4:20 pmLondon Heathrow

26h 09m

2 stops

EYW1:29 pmKey West

$1,134

Delta

May 26

EYW7:30 amKey West

18h 45m

1 stop

LHR7:15 amLondon Heathrow

Jun 2

LHR6:15 amLondon Heathrow

18h 34m

2 stops

EYW7:49 pmKey West

$1,170

United Airlines flights from Key West to London

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

United Airlines

May 4

EYW4:47 pmKey West

13h 48m

1 stop

LHR11:35 amLondon Heathrow

May 11

LHR8:00 amLondon Heathrow

36h 07m

1 stop

EYW3:07 pmKey West

$1,011

United Airlines

May 17

EYW2:49 pmKey West

34h 41m

2 stops

LHR6:30 amLondon Heathrow

May 24

LHR6:50 amLondon Heathrow

37h 17m

2 stops

EYW3:07 pmKey West

$1,092

United Airlines

Jun 16

EYW2:26 pmKey West

11h 49m

1 stop

LHR7:15 amLondon Heathrow

Jul 17

LHR11:05 amLondon Heathrow

33h 02m

1 stop

EYW3:07 pmKey West

$1,374

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/7

4:20 pm-9:05 am

1 stop11h 45m

London Heathrow

Tue 5/12

8:15 am-9:53 pm

2 stops18h 38m

$959

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 5/4

3:58 pm-10:45 pm

2 stops25h 47m

London Heathrow

Mon 5/11

6:45 pm-10:58 pm

2 stops33h 13m

$965

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 5/4

7:33 am-6:25 am

1 stop17h 52m

London Heathrow

Mon 5/11

8:55 pm-5:23 pm

2 stops25h 28m

$972

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/7

3:58 pm-12:35 pm

1 stop15h 37m

London Heathrow

Tue 5/12

4:35 pm-1:27 pm

1 stop25h 52m

$995

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sat 5/9

3:58 pm-11:05 am

1 stop14h 07m

London Heathrow

Wed 5/20

9:15 am-10:36 pm

1 stop18h 21m

$1,004

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 5/4

4:47 pm-11:35 am

1 stop13h 48m

London Heathrow

Mon 5/11

8:00 am-3:07 pm

1 stop36h 07m

$1,011

Key WestLondon

EYW - LGW

EYWLGW

Key West

Mon 5/4

3:58 pm-10:50 am

2 stops37h 52m

London Gatwick

Mon 5/11

8:40 pm-10:58 pm

2 stops31h 18m

$1,016

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/21

11:48 am-12:35 pm

2 stops19h 47m

London Heathrow

Thu 5/28

6:15 am-7:49 pm

2 stops18h 34m

$1,027

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/21

6:19 pm-1:15 pm

1 stop13h 56m

London Heathrow

Thu 5/28

6:15 am-7:49 pm

2 stops18h 34m

$1,031

Quickest round-trip

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/21

6:19 pm-11:20 am

1 stop12h 01m

London Heathrow

Thu 5/28

11:15 am-7:49 pm

1 stop13h 34m

$1,044

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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

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

You could potentially save up to 47% on your flight if you consider stops on a Key West to London flight.

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	16h 41m
Direct flights	None

The fastest flight from Key West to London takes 16h 41m

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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Frequently asked questions about flying from Key West to London

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 16h 41m 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 (70% of total bookings). The next most popular airline is British Airways (30%).

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Hayes

Slough

Wembley

Crawley

Stansted

Croydon

Dartford

Brentwood

Cobham

Folkestone

Guildford

Romford

Harrow

Watford

Richmond

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.

An easier way to manage your London trip

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Complete your trip

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Cheap flights from Key West to London from $781

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to London departing on 6/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

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Filter for what you want

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Trusted and free

Price Alerts

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Find the cheapest flights from Key West to London

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Delta flights from Key West to London

Our best Delta deals on Key West to London flight tickets

United Airlines flights from Key West to London

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

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

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

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

When to book flights from Key West to London

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

Direct flights

Frequently asked questions about flying from Key West to London

Traveling to a place near London?

Why use momondo?

An easier way to manage your London 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 Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Cabin classes currently available on flights to London

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

Popular cities in the United Kingdom

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

Fly to other destinations from Key West

According to popular flight searches on momondo this year

Complete your trip to London

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According to popular flight searches on momondo this year