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 refresh daily.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Key West Airport to London Heathrow Airport.

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

The necessary travel and health documents for your London Heathrow 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.

£575 Cheap Flights from Key West to London Heathrow Airport in 2026

1 adult

0 bags

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Key West to London

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

07:40 - 06:25

EYW

LHR

17h 45m

1 stop

06:30 - 19:45

LHR

EYW

18h 15m

2 stops

£645Delta

Tue, 18 Aug - Tue, 1 Sep

07:40 - 10:20

EYW

LHR

21h 40m

2 stops

06:30 - 19:45

LHR

EYW

18h 15m

2 stops

£649Delta

Tue, 18 Aug - Tue, 1 Sep

12:00 - 12:05

EYW

LHR

19h 05m

1 stop

07:35 - 19:29

LHR

EYW

16h 54m

2 stops

£658British Airways

Thu, 5 Nov - Wed, 11 Nov

20:00 - 16:05

EYW

LHR

15h 05m

2 stops

07:35 - 19:29

LHR

EYW

16h 54m

2 stops

£664British Airways

Thu, 5 Nov - Wed, 11 Nov

07:40 - 06:25

EYW

LHR

17h 45m

1 stop

09:20 - 19:45

LHR

EYW

15h 25m

1 stop

£667KLM

Tue, 18 Aug - Tue, 1 Sep

14:30 - 12:00

EYW

LHR

16h 30m

2 stops

18:00 - 15:06

LHR

EYW

26h 06m

2 stops

£670United Airlines

Wed, 11 Nov - Fri, 13 Nov

14:30 - 10:25

EYW

LHR

14h 55m

1 stop

13:35 - 15:06

LHR

EYW

30h 31m

1 stop

£671United Airlines

Wed, 11 Nov - Fri, 13 Nov

14:30 - 08:25

EYW

LHR

12h 55m

1 stop

16:00 - 13:02

LHR

EYW

26h 02m

1 stop

£671United Airlines

Wed, 11 Nov - Fri, 13 Nov

14:30 - 10:25

EYW

LHR

14h 55m

1 stop

18:00 - 13:02

LHR

EYW

24h 02m

1 stop

£672United Airlines

Wed, 11 Nov - Fri, 13 Nov

13:45 - 11:30

EYW

LHR

16h 45m

1 stop

09:45 - 19:29

LHR

EYW

14h 44m

1 stop

£677British Airways

Thu, 5 Nov - Wed, 11 Nov

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

11 Nov

EYW14:30Key West

16h 30m

2 stops

LHR12:00London Heathrow

13 Nov

LHR18:00London Heathrow

26h 06m

2 stops

EYW15:06Key West

£670

United Airlines

11 Nov

EYW14:30Key West

14h 55m

1 stop

LHR10:25London Heathrow

13 Nov

LHR13:35London Heathrow

30h 31m

1 stop

EYW15:06Key West

£671

United Airlines

11 Nov

EYW14:30Key West

12h 55m

1 stop

LHR08:25London Heathrow

13 Nov

LHR16:00London Heathrow

26h 02m

1 stop

EYW13:02Key West

£671

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

5 Nov

EYW12:00Key West

19h 05m

1 stop

LHR12:05London Heathrow

11 Nov

LHR07:35London Heathrow

16h 54m

2 stops

EYW19:29Key West

£658

British Airways

5 Nov

EYW20:00Key West

15h 05m

2 stops

LHR16:05London Heathrow

11 Nov

LHR07:35London Heathrow

16h 54m

2 stops

EYW19:29Key West

£664

British Airways

5 Nov

EYW13:45Key West

16h 45m

1 stop

LHR11:30London Heathrow

11 Nov

LHR09:45London Heathrow

14h 44m

1 stop

EYW19:29Key West

£677

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

Cheapest return flight

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 18/8

07:40-06:25

1 stop17h 45m

London Heathrow

Tue 1/9

06:30-19:45

2 stops18h 15m

£645

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 18/8

07:40-10:20

2 stops21h 40m

London Heathrow

Tue 1/9

06:30-19:45

2 stops18h 15m

£649

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/11

12:00-12:05

1 stop19h 05m

London Heathrow

Wed 11/11

07:35-19:29

2 stops16h 54m

£658

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/11

20:00-16:05

2 stops15h 05m

London Heathrow

Wed 11/11

07:35-19:29

2 stops16h 54m

£664

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 18/8

07:40-06:25

1 stop17h 45m

London Heathrow

Tue 1/9

09:20-19:45

1 stop15h 25m

£667

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 11/11

14:30-12:00

2 stops16h 30m

London Heathrow

Fri 13/11

18:00-15:06

2 stops26h 06m

£670

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 11/11

14:30-10:25

1 stop14h 55m

London Heathrow

Fri 13/11

13:35-15:06

1 stop30h 31m

£671

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 11/11

14:30-08:25

1 stop12h 55m

London Heathrow

Fri 13/11

16:00-13:02

1 stop26h 02m

£671

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 11/11

14:30-10:25

1 stop14h 55m

London Heathrow

Fri 13/11

18:00-13:02

1 stop24h 02m

£672

Fastest return journey

Key WestLondon

EYW - LHR

EYWLHR

Key West

Thu 5/11

13:45-11:30

1 stop16h 45m

London Heathrow

Wed 11/11

09:45-19:29

1 stop14h 44m

£677

Flights are sorted by cheapest return 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

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

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

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 return 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

Fastest flight time	11h 28m
Direct flights	None

The fastest flight from Key West to London Heathrow Airport takes 11h 28m

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

Frequently asked questions about flying from Key West to London Heathrow Airport

How far is Key West to London Heathrow by plane?
The distance between Key West and London Heathrow is about 4541.3 mi. A reasonable flight in good conditions will take 11h 28m.
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 refresh daily.
How old do you have to be to fly from Key West Airport to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Key West Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The necessary travel and health documents for your London Heathrow 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.

Eastbourne

Milton Keynes

Gatwick

Luton

Wembley

Stratford-upon-Avon

Slough

Maidstone

Northampton

Swindon

Ipswich

Southend-on-Sea

Canterbury

Ilford

Hayes

Guildford

Poole

Folkestone

Chelmsford

Dover

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Key West to London for you.

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

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

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 simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Key West and alert you when they change.