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

JetBlue, Delta, and United Airlines are the most popular carriers operating from Key West to United Kingdom

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

Prices for flights from Key West Airport to United Kingdom are updated daily.

How many operators does momondo search for flights from Key West Airport to United Kingdom?

The number of operators available for flights from Key West Airport to United Kingdom is 1 as of October 2026.

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

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 United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

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

£217 Cheap Flights from Key West to the United Kingdom in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Key West to the United Kingdom

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

13:14 - 06:55EYW Key West-LHR London Heathrow

12h 41m1 stop Boston Logan Intl

09:20 - 12:23LHR London Heathrow-EYW Key West

32h 03m1 stop Boston Logan Intl

£610JetBlue

Thu, 3 Dec - Sun, 13 Dec

13:14 - 06:55EYW Key West-LHR London Heathrow

12h 41m1 stop Boston Logan Intl

09:20 - 12:23LHR London Heathrow-EYW Key West

32h 03m1 stop Boston Logan Intl

£610JetBlue

Thu, 3 Dec - Mon, 7 Dec

13:14 - 06:55EYW Key West-LHR London Heathrow

12h 41m1 stop Boston Logan Intl

09:20 - 12:23LHR London Heathrow-EYW Key West

32h 03m1 stop Boston Logan Intl

£625JetBlue

Tue, 1 Dec - Mon, 7 Dec

13:14 - 06:55EYW Key West-LHR London Heathrow

12h 41m1 stop Boston Logan Intl

09:20 - 12:23LHR London Heathrow-EYW Key West

32h 03m1 stop Boston Logan Intl

£631JetBlue

Tue, 1 Dec - Sat, 12 Dec

13:14 - 06:55EYW Key West-LHR London Heathrow

12h 41m1 stop Boston Logan Intl

09:20 - 12:23LHR London Heathrow-EYW Key West

32h 03m1 stop Boston Logan Intl

£632JetBlue

Fri, 4 Dec - Mon, 7 Dec

13:14 - 06:55EYW Key West-LHR London Heathrow

12h 41m1 stop Boston Logan Intl

09:20 - 12:23LHR London Heathrow-EYW Key West

32h 03m1 stop Boston Logan Intl

£633JetBlue

Fri, 4 Dec - Mon, 7 Dec

13:14 - 06:55EYW Key West-LHR London Heathrow

12h 41m1 stop Boston Logan Intl

09:20 - 12:23LHR London Heathrow-EYW Key West

32h 03m1 stop Boston Logan Intl

£640JetBlue

Wed, 2 Dec - Tue, 8 Dec

13:14 - 06:55EYW Key West-LHR London Heathrow

12h 41m1 stop Boston Logan Intl

09:20 - 12:23LHR London Heathrow-EYW Key West

32h 03m1 stop Boston Logan Intl

£641JetBlue

Thu, 3 Dec - Wed, 9 Dec

13:14 - 06:55EYW Key West-LHR London Heathrow

12h 41m1 stop Boston Logan Intl

07:30 - 19:30LHR London Heathrow-EYW Key West

17h 00m2 stops Madrid Barajas Miami

£642Multiple Airlines

Tue, 1 Dec - Mon, 7 Dec

13:14 - 06:55EYW Key West-LHR London Heathrow

12h 41m1 stop Boston Logan Intl

09:20 - 12:23LHR London Heathrow-EYW Key West

32h 03m1 stop Boston Logan Intl

£646JetBlue

Wed, 2 Dec - Fri, 11 Dec

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JetBlue flights from Key West to United Kingdom

Our best JetBlue deals on Key West to United Kingdom flight tickets

JetBlue

3 Dec

EYW13:14Key West

12h 41m

1 stop

LHR06:55London Heathrow

13 Dec

LHR09:20London Heathrow

32h 03m

1 stop

EYW12:23Key West

£610

JetBlue

3 Dec

EYW13:14Key West

12h 41m

1 stop

LHR06:55London Heathrow

7 Dec

LHR09:20London Heathrow

32h 03m

1 stop

EYW12:23Key West

£610

JetBlue

1 Dec

EYW13:14Key West

12h 41m

1 stop

LHR06:55London Heathrow

7 Dec

LHR09:20London Heathrow

32h 03m

1 stop

EYW12:23Key West

£625

Delta flights from Key West to United Kingdom

Our best Delta deals on Key West to United Kingdom flight tickets

Delta

2 Dec

EYW14:09Key West

16h 31m

1 stop

LHR11:40London Heathrow

8 Dec

LHR06:30London Heathrow

18h 31m

2 stops

EYW20:01Key West

£663

Delta

24 Nov

EYW14:07Key West

11h 18m

1 stop

LHR06:25London Heathrow

8 Dec

LHR06:30London Heathrow

18h 31m

2 stops

EYW20:01Key West

£663

Delta

2 Dec

EYW14:09Key West

15h 21m

2 stops

LHR10:30London Heathrow

9 Dec

LHR06:30London Heathrow

15h 40m

2 stops

EYW17:10Key West

£666

momondo Fare Finder

Use the filters below to find and compare flights from Key West to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Key WestLondon

EYW Key West - LHR London Heathrow

EYWLHR

Key West

Thu 3/12

13:14-06:55

1 stop12h 41m

London Heathrow

Sun 13/12

09:20-12:23

1 stop32h 03m

£610

Key WestLondon

EYW Key West - LHR London Heathrow

EYWLHR

Key West

Thu 3/12

13:14-06:55

1 stop12h 41m

London Heathrow

Mon 7/12

09:20-12:23

1 stop32h 03m

£610

Key WestLondon

EYW Key West - LHR London Heathrow

EYWLHR

Key West

Tue 1/12

13:14-06:55

1 stop12h 41m

London Heathrow

Mon 7/12

09:20-12:23

1 stop32h 03m

£625

Key WestLondon

EYW Key West - LHR London Heathrow

EYWLHR

Key West

Tue 1/12

13:14-06:55

1 stop12h 41m

London Heathrow

Sat 12/12

09:20-12:23

1 stop32h 03m

£631

Key WestLondon

EYW Key West - LHR London Heathrow

EYWLHR

Key West

Fri 4/12

13:14-06:55

1 stop12h 41m

London Heathrow

Mon 7/12

09:20-12:23

1 stop32h 03m

£632

Key WestLondon

EYW Key West - LHR London Heathrow

EYWLHR

Key West

Fri 4/12

13:14-06:55

1 stop12h 41m

London Heathrow

Mon 7/12

09:20-12:23

1 stop32h 03m

£633

Key WestLondon

EYW Key West - LHR London Heathrow

EYWLHR

Key West

Wed 2/12

13:14-06:55

1 stop12h 41m

London Heathrow

Tue 8/12

09:20-12:23

1 stop32h 03m

£640

Key WestLondon

EYW Key West - LHR London Heathrow

EYWLHR

Key West

Thu 3/12

13:14-06:55

1 stop12h 41m

London Heathrow

Wed 9/12

09:20-12:23

1 stop32h 03m

£641

Fastest return journey

Key WestLondon

EYW Key West - LHR London Heathrow

EYWLHR

Key West

Tue 1/12

13:14-06:55

1 stop12h 41m

London Heathrow

Mon 7/12

07:30-19:30

2 stops17h 00m

£642

Key WestLondon

EYW Key West - LHR London Heathrow

EYWLHR

Key West

Wed 2/12

13:14-06:55

1 stop12h 41m

London Heathrow

Fri 11/12

09:20-12:23

1 stop32h 03m

£646

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Key West to United Kingdom

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 United Kingdom flights?

You could potentially save up to 40% on your flight if you consider stops on a Key West to United Kingdom flight.

Cheap Key West to United Kingdom flight deals and tips

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

Best price found	£217
Fastest flight time	12h 10m
Direct flights	None

The best one-way flight to United Kingdom from Key West in the past 72 hours is £217. The best return flight deal from Key West to United Kingdom found on momondo in the last 72 hours is £610.

The fastest flight from Key West to United Kingdom takes 12h 10m

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

Search flight deals

Frequently asked questions about flying from Key West to the United Kingdom

When did momondo last update prices for flights from Key West Airport to United Kingdom?
Prices for flights from Key West Airport to United Kingdom are updated daily.
How many operators does momondo search for flights from Key West Airport to United Kingdom?
The number of operators available for flights from Key West Airport to United Kingdom is 1 as of October 2026.
How old do you have to be to fly from Key West Airport to United Kingdom?
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 United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents required for your trip to United Kingdom 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 United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Key West to United Kingdom

Compare and see reviews for airlines that fly from Key West to United Kingdom with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom £961	Free Cancellation	Rating 7.8 8,661 reviews		Search Delta flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United Kingdom from Key West.

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

Flights from Key West to United Kingdom with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to United Kingdom from Key West. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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