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Cheap flights from the United Kingdom to Key West from $485

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Key West departing on 5/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from the United Kingdom to Key West

Recent round-trip flight deals from the United Kingdom to Key West

Enter your travel dates to find the best prices.
British Airways Logo
6:25 am - 10:58 pm
LHR
-
EYW
21h 33m
2 stops
British Airways Logo
3:58 pm - 9:00 am
EYW
-
LHR
12h 02m
1 stop
$636British Airways
Mon, Apr 13 - Mon, Apr 20
British Airways Logo
7:50 am - 10:58 pm
LHR
-
EYW
20h 08m
2 stops
British Airways Logo
3:58 pm - 12:35 pm
EYW
-
LHR
15h 37m
1 stop
$644British Airways
Tue, Apr 14 - Tue, Apr 21
British Airways Logo
7:50 am - 10:58 pm
LHR
-
EYW
20h 08m
2 stops
British Airways Logo
3:58 pm - 2:35 pm
EYW
-
LHR
17h 37m
2 stops
$659British Airways
Tue, Apr 14 - Tue, Apr 21
United Airlines Logo
6:50 am - 10:19 pm
LHR
-
EYW
19h 29m
2 stops
United Airlines Logo
4:55 pm - 7:30 am
EYW
-
LHR
34h 35m
1 stop
$661United Airlines
Wed, Mar 11 - Wed, Mar 25
United Airlines Logo
6:50 am - 10:19 pm
LHR
-
EYW
19h 29m
2 stops
United Airlines Logo
5:30 pm - 3:50 pm
EYW
-
LHR
18h 20m
2 stops
$667United Airlines
Wed, Mar 11 - Wed, Mar 25
Multiple Airlines Logo
2:00 pm - 12:26 pm
LGW
-
EYW
26h 26m
1 stop
Multiple Airlines Logo
11:51 am - 10:00 am
EYW
-
LGW
18h 09m
1 stop
$701Multiple Airlines
Thu, Mar 12 - Wed, Mar 25
KLM Logo
8:15 pm - 7:40 pm
LCY
-
EYW
52h 25m
2 stops
KLM Logo
6:23 pm - 5:20 pm
EYW
-
LCY
17h 57m
2 stops
$744KLM
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
2:00 pm - 1:37 pm
LGW
-
EYW
27h 37m
2 stops
Multiple Airlines Logo
11:51 am - 10:00 am
EYW
-
LGW
18h 09m
1 stop
$747Multiple Airlines
Thu, Mar 12 - Wed, Mar 25
Delta Logo
7:45 am - 7:41 pm
LCY
-
EYW
15h 56m
2 stops
Delta Logo
6:25 pm - 4:35 pm
EYW
-
LCY
18h 10m
2 stops
$753Delta
Wed, Mar 11 - Wed, Mar 25
Delta Logo
7:45 am - 7:41 pm
LCY
-
EYW
15h 56m
2 stops
Delta Logo
6:25 pm - 4:35 pm
EYW
-
LCY
18h 10m
2 stops
$794Delta
Thu, Mar 12 - Wed, Mar 25

United Airlines flights from United Kingdom to Key West

Our best United Airlines deals on United Kingdom to Key West flight tickets
United Airlines
Mar 11
LHR6:50 amLondon Heathrow
19h 29m
2 stops
EYW10:19 pmKey West
Mar 25
EYW4:55 pmKey West
34h 35m
1 stop
LHR7:30 amLondon Heathrow
$661
United Airlines
Mar 11
LHR6:50 amLondon Heathrow
19h 29m
2 stops
EYW10:19 pmKey West
Mar 25
EYW5:30 pmKey West
18h 20m
2 stops
LHR3:50 pmLondon Heathrow
$667
United Airlines
Mar 11
LHR6:50 amLondon Heathrow
19h 29m
2 stops
EYW10:19 pmKey West
Mar 25
EYW4:55 pmKey West
33h 35m
3 stops
LHR6:30 amLondon Heathrow
$669

Delta flights from United Kingdom to Key West

Our best Delta deals on United Kingdom to Key West flight tickets
Delta
Mar 11
LCY7:45 amLondon City
15h 56m
2 stops
EYW7:41 pmKey West
Mar 25
EYW6:25 pmKey West
18h 10m
2 stops
LCY4:35 pmLondon City
$753
Delta
Mar 12
LCY7:45 amLondon City
15h 56m
2 stops
EYW7:41 pmKey West
Mar 25
EYW6:25 pmKey West
18h 10m
2 stops
LCY4:35 pmLondon City
$794
Delta
Mar 2
LCY7:45 amLondon City
16h 57m
2 stops
EYW7:42 pmKey West
Mar 8
EYW6:25 pmKey West
18h 10m
2 stops
LCY4:35 pmLondon City
$1,676

momondo Fare Finder

 
Customize your flight search to find flights from United Kingdom to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 1, 2026.
Use the filters below to find and compare flights from the United Kingdom to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Mon 4/13

6:25 am-10:58 pm

2 stops21h 33m

Key West

Mon 4/20

3:58 pm-9:00 am

1 stop12h 02m

$636

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 4/14

7:50 am-10:58 pm

2 stops20h 08m

Key West

Tue 4/21

3:58 pm-12:35 pm

1 stop15h 37m

$644

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 4/14

7:50 am-10:58 pm

2 stops20h 08m

Key West

Tue 4/21

3:58 pm-2:35 pm

2 stops17h 37m

$659

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 3/11

6:50 am-10:19 pm

2 stops19h 29m

Key West

Wed 3/25

4:55 pm-7:30 am

1 stop34h 35m

$661

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 3/11

6:50 am-10:19 pm

2 stops19h 29m

Key West

Wed 3/25

5:30 pm-3:50 pm

2 stops18h 20m

$667

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Thu 3/12

2:00 pm-12:26 pm

1 stop26h 26m

Key West

Wed 3/25

11:51 am-10:00 am

1 stop18h 09m

$701

LondonKey West

LCY - EYW

LCYEYW

London City

Tue 4/14

8:15 pm-7:40 pm

2 stops52h 25m

Key West

Tue 4/21

6:23 pm-5:20 pm

2 stops17h 57m

$744

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Thu 3/12

2:00 pm-1:37 pm

2 stops27h 37m

Key West

Wed 3/25

11:51 am-10:00 am

1 stop18h 09m

$747

LondonKey West

LCY - EYW

LCYEYW

London City

Wed 3/11

7:45 am-7:41 pm

2 stops15h 56m

Key West

Wed 3/25

6:25 pm-4:35 pm

2 stops18h 10m

$753

LondonKey West

LCY - EYW

LCYEYW

London City

Thu 3/12

7:45 am-7:41 pm

2 stops15h 56m

Key West

Wed 3/25

6:25 pm-4:35 pm

2 stops18h 10m

$794

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Key West from

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

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 month to fly to Key West?

In general, September is the cheapest month to fly from United Kingdom to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $684. If you are unable to visit Key West during the month of September, then departing from United Kingdom during the month January is also very affordable. Most momondo users find prices during this month for around $700.

Can stopping save me money on United Kingdom to Key West flights?

You could potentially save up to 2% on your flight if you consider stops on a United Kingdom to Key West flight.

Cheap United Kingdom to Key West flight deals and tips

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

Fastest flight time

15h 56m

Direct flights

None
The fastest flight from United Kingdom to Key West takes 15h 56m
There are no direct flights from United Kingdom to Key West. There are no popular flight routes from United Kingdom to Key West.
Search flight deals

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

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

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

  • What documentation or ID do you need to fly to Key West Airport?

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

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

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

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

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from United Kingdom to Key West.

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

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

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