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

Delta and Virgin Atlantic are the most popular carriers operating from Key West to London Heathrow

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

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

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

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

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

$441 Cheap Flights from Key West to London Heathrow Airport (EYW-LHR) in 2025

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Find the cheapest flights from Key West to London (EYW-LHR)

Round-trip

One-way

Cheap round-trip flights

7:28 pm - 11:40 amEYW-LHR

35h 12m2 stops

9:45 am - 6:38 pmLHR-EYW

13h 53m1 stop

$667British Airways

Find Deal

Thu, Dec 11 - Sun, Dec 14

5:47 pm - 9:25 amEYW-LHR

10h 38m1 stop

7:05 pm - 7:22 pmLHR-EYW

28h 17m2 stops

$670British Airways

Find Deal

Wed, Oct 8 - Wed, Oct 29

1:25 pm - 10:35 amEYW-LHR

16h 10m1 stop

9:45 am - 7:22 pmLHR-EYW

13h 37m1 stop

$691British Airways

Find Deal

Wed, Oct 8 - Wed, Oct 29

1:45 pm - 6:50 amEYW-LHR

12h 05m1 stop

6:05 am - 6:38 pmLHR-EYW

17h 33m2 stops

$716British Airways

Find Deal

Wed, Nov 26 - Sun, Dec 7

3:12 pm - 4:25 pmEYW-LHR

20h 13m2 stops

4:20 pm - 2:04 pmLHR-EYW

25h 44m2 stops

$720United Airlines

Find Deal

Wed, Oct 8 - Wed, Oct 29

12:50 pm - 11:25 amEYW-LHR

17h 35m2 stops

8:15 am - 11:55 amLHR-EYW

32h 40m2 stops

$724TAP AIR PORTUGAL

Find Deal

Wed, Nov 26 - Sun, Dec 7

7:28 pm - 11:40 amEYW-LHR

35h 12m2 stops

9:45 am - 6:38 pmLHR-EYW

13h 53m1 stop

$732British Airways

Find Deal

Thu, Dec 11 - Sun, Dec 14

1:39 pm - 6:55 amEYW-LHR

12h 16m1 stop

6:05 am - 6:38 pmLHR-EYW

17h 33m2 stops

$772American Airlines

Find Deal

Thu, Nov 27 - Sun, Dec 7

1:06 pm - 7:10 amEYW-LHR

37h 04m2 stops

11:10 am - 2:06 pmLHR-EYW

31h 56m2 stops

$780United Airlines

Find Deal

Thu, Nov 27 - Sun, Dec 7

1:25 pm - 11:30 amEYW-LHR

17h 05m2 stops

6:30 pm - 11:53 amLHR-EYW

46h 23m2 stops

$5,783

Find Deal

Wed, Oct 15 - Wed, Nov 12

United Airlines flights from Key West to London Heathrow Airport

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

United Airlines

Oct 8

EYW3:12 pmKey West

20h 13m

2 stops

LHR4:25 pmLondon Heathrow

Oct 29

LHR4:20 pmLondon Heathrow

25h 44m

2 stops

EYW2:04 pmKey West

$720

Find similar

United Airlines

Nov 27

EYW1:06 pmKey West

37h 04m

2 stops

LHR7:10 amLondon Heathrow

Dec 7

LHR11:10 amLondon Heathrow

31h 56m

2 stops

EYW2:06 pmKey West

$780

Find similar

United Airlines

Oct 8

EYW3:12 pmKey West

16h 38m

2 stops

LHR12:50 pmLondon Heathrow

Oct 29

LHR1:25 pmLondon Heathrow

28h 39m

3 stops

EYW2:04 pmKey West

$807

Find similar

British Airways flights from Key West to London Heathrow Airport

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

British Airways

Dec 11

EYW7:28 pmKey West

35h 12m

2 stops

LHR11:40 amLondon Heathrow

Dec 14

LHR9:45 amLondon Heathrow

13h 53m

1 stop

EYW6:38 pmKey West

$667

Find similar

British Airways

Oct 8

EYW5:47 pmKey West

10h 38m

1 stop

LHR9:25 amLondon Heathrow

Oct 29

LHR7:05 pmLondon Heathrow

28h 17m

2 stops

EYW7:22 pmKey West

$670

Find similar

British Airways

Oct 8

EYW1:25 pmKey West

16h 10m

1 stop

LHR10:35 amLondon Heathrow

Oct 29

LHR9:45 amLondon Heathrow

13h 37m

1 stop

EYW7:22 pmKey West

$691

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Key West to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 12/11

7:28 pm-11:40 am

2 stops35h 12m

London Heathrow

Sun 12/14

9:45 am-6:38 pm

1 stop13h 53m

$667

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 10/8

5:47 pm-9:25 am

1 stop10h 38m

London Heathrow

Wed 10/29

7:05 pm-7:22 pm

2 stops28h 17m

$670

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 10/8

1:25 pm-10:35 am

1 stop16h 10m

London Heathrow

Wed 10/29

9:45 am-7:22 pm

1 stop13h 37m

$691

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 11/26

1:45 pm-6:50 am

1 stop12h 05m

London Heathrow

Sun 12/7

6:05 am-6:38 pm

2 stops17h 33m

$716

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 10/8

3:12 pm-4:25 pm

2 stops20h 13m

London Heathrow

Wed 10/29

4:20 pm-2:04 pm

2 stops25h 44m

$720

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 11/26

12:50 pm-11:25 am

2 stops17h 35m

London Heathrow

Sun 12/7

8:15 am-11:55 am

2 stops32h 40m

$724

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 12/11

7:28 pm-11:40 am

2 stops35h 12m

London Heathrow

Sun 12/14

9:45 am-6:38 pm

1 stop13h 53m

$732

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 11/27

1:39 pm-6:55 am

1 stop12h 16m

London Heathrow

Sun 12/7

6:05 am-6:38 pm

2 stops17h 33m

$772

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 11/27

1:06 pm-7:10 am

2 stops37h 04m

London Heathrow

Sun 12/7

11:10 am-2:06 pm

2 stops31h 56m

$780

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 10/15

1:25 pm-11:30 am

2 stops17h 05m

London Heathrow

Wed 11/12

6:30 pm-11:53 am

2 stops46h 23m

$5,783

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 Heathrow Airport

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 cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Monday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $691. The most expensive day to fly to London Heathrow Airport is Tuesday, with ticket prices averaging around $2,031.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Key West to London Heathrow Airport in the afternoon for as low as $789. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $2,031.

When to book flights from Key West to London Heathrow Airport

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

Estimated round-trip price

Cheap Key West to London Heathrow Airport (EYW to LHR) flight deals and tips

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

Direct flights	None

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

Search flight deals

How far is Key West to London Heathrow by plane?
A flight from Key West to London Heathrow will travel around 4541.3 mi. Typically, this will take 10h 38m by plane in normal conditions.
When did momondo last update prices for flights from Key West Airport to London Heathrow Airport?
Prices for flights from Key West Airport to London Heathrow Airport are refreshed on a daily basis.
How old do you have to be to fly from Key West Airport to London Heathrow 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 Key West Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow 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 London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Hounslow

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Luton

Dover

Slough

Milton Keynes

Guildford

Dartford

Crawley

Hayes

Chelmsford

Salisbury

Stansted

Brentwood

Ilford

Folkestone

Swindon

Colchester

Stratford-upon-Avon

Watford

Why use momondo?

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

Finding the right flight to London from Key West 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 London quick and easy, saving you time and money.

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 in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Key West.

I’m not ready to book a flight from Key West to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Key West to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London Heathrow Airport 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.

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Cheap flights from Key West to London from $441

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 10/15. 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

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Key West to London (EYW-LHR)

Cheap round-trip flights

Cheap one-way flights

United Airlines flights from Key West to London Heathrow Airport

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

British Airways flights from Key West to London Heathrow Airport

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

momondo Fare Finder

Use the filters below to find and compare flights from Key West to London Heathrow Airport that are best for you.

See travel insights to London from

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

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 day to depart on your flight to London Heathrow Airport?

Our data shows that Monday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $691. The most expensive day to fly to London Heathrow Airport is Tuesday, with ticket prices averaging around $2,031.

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

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

Delta and Virgin Atlantic are the most popular carriers operating from Key West to London Heathrow

When to book flights from Key West to London Heathrow Airport

Cheap Key West to London Heathrow Airport (EYW to LHR) flight deals and tips

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

Direct flights

How far is Key West to London Heathrow by plane?

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

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

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

Traveling to a place near London?

Why use momondo?

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

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

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

I’m not ready to book a flight from Key West to London right now. Can momondo alert me if prices change?

An easier way to manage your London Heathrow Airport 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 London

Popular cities in the United Kingdom

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