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Cheap flights from the United Kingdom to Key West from $417

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 10/28. 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
1 adult, Economy, 0 bags

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
4:30 pm - 6:24 pm
LHR
-
EYW
30h 54m
2 stops
British Airways Logo
2:01 pm - 12:35 pm
EYW
-
LHR
17h 34m
1 stop
$789British Airways
Sun, Oct 4 - Sat, Oct 10
Virgin Atlantic Logo
8:55 pm - 8:01 pm
LHR
-
EYW
28h 06m
2 stops
Virgin Atlantic Logo
6:00 pm - 6:45 am
EYW
-
LHR
31h 45m
2 stops
$792Virgin Atlantic
Sun, Oct 4 - Sat, Oct 10
Finnair Logo
5:05 pm - 5:39 pm
LHR
-
EYW
29h 34m
2 stops
Finnair Logo
2:35 pm - 10:10 pm
EYW
-
LHR
26h 35m
1 stop
$827Finnair
Thu, Oct 1 - Sun, Nov 1
British Airways Logo
9:55 am - 7:17 pm
LHR
-
EYW
14h 22m
1 stop
British Airways Logo
2:01 pm - 12:35 pm
EYW
-
LHR
17h 34m
1 stop
$834British Airways
Sun, Oct 4 - Sat, Oct 10
Multiple Airlines Logo
2:00 pm - 11:27 am
LGW
-
EYW
26h 27m
1 stop
Multiple Airlines Logo
12:05 pm - 10:00 am
EYW
-
LGW
16h 55m
1 stop
$880Multiple Airlines
Thu, Aug 6 - Sun, Aug 16
KLM Logo
8:45 pm - 7:50 pm
LCY
-
EYW
28h 05m
2 stops
KLM Logo
6:00 pm - 5:20 pm
EYW
-
LCY
18h 20m
2 stops
$883KLM
Sun, Oct 4 - Sat, Oct 10
United Airlines Logo
4:00 pm - 1:29 pm
LHR
-
EYW
26h 29m
1 stop
United Airlines Logo
4:00 pm - 7:55 am
EYW
-
LHR
34h 55m
1 stop
$883United Airlines
Thu, Oct 1 - Sun, Nov 1
Multiple Airlines Logo
2:00 pm - 11:27 am
LGW
-
EYW
26h 27m
1 stop
Multiple Airlines Logo
12:05 pm - 10:00 am
EYW
-
LGW
16h 55m
1 stop
$893Multiple Airlines
Thu, Aug 6 - Sun, Aug 16
United Airlines Logo
8:30 am - 1:29 pm
LHR
-
EYW
33h 59m
2 stops
United Airlines Logo
2:15 pm - 7:15 am
EYW
-
LHR
12h 00m
1 stop
$948United Airlines
Sun, Aug 23 - Sun, Sep 6
KLM Logo
7:00 pm - 5:24 pm
LCY
-
EYW
27h 24m
2 stops
KLM Logo
7:40 am - 5:20 pm
EYW
-
LCY
28h 40m
2 stops
$1,156KLM
Thu, Oct 1 - Sun, Nov 1

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Delta flights from United Kingdom to Key West

Our best Delta deals on United Kingdom to Key West flight tickets
Delta
Aug 23
LHR5:35 pmLondon Heathrow
28h 45m
2 stops
EYW5:20 pmKey West
Sep 6
EYW7:40 amKey West
20h 10m
2 stops
LHR8:50 amLondon Heathrow
$1,012
Delta
Aug 23
LHR5:35 pmLondon Heathrow
28h 45m
2 stops
EYW5:20 pmKey West
Sep 6
EYW7:40 amKey West
20h 10m
2 stops
LHR8:50 amLondon Heathrow
$1,013
Delta
Aug 24
LHR6:15 amLondon Heathrow
16h 05m
2 stops
EYW5:20 pmKey West
Aug 31
EYW6:15 pmKey West
14h 00m
1 stop
LHR1:15 pmLondon Heathrow
$1,080

British Airways flights from United Kingdom to Key West

Our best British Airways deals on United Kingdom to Key West flight tickets
British Airways
Oct 4
LHR4:30 pmLondon Heathrow
30h 54m
2 stops
EYW6:24 pmKey West
Oct 10
EYW2:01 pmKey West
17h 34m
1 stop
LHR12:35 pmLondon Heathrow
$789
British Airways
Oct 4
LHR9:55 amLondon Heathrow
14h 22m
1 stop
EYW7:17 pmKey West
Oct 10
EYW2:01 pmKey West
17h 34m
1 stop
LHR12:35 pmLondon Heathrow
$834
British Airways
Oct 8
LGW8:40 pmLondon Gatwick
26h 44m
2 stops
EYW6:24 pmKey West
Oct 12
EYW7:52 pmKey West
43h 08m
2 stops
LGW8:00 pmLondon Gatwick
$849

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 June 30, 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

Cheapest round-trip

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sun 10/4

4:30 pm-6:24 pm

2 stops30h 54m

Key West

Sat 10/10

2:01 pm-12:35 pm

1 stop17h 34m

$789

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sun 10/4

8:55 pm-8:01 pm

2 stops28h 06m

Key West

Sat 10/10

6:00 pm-6:45 am

2 stops31h 45m

$792

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 10/1

5:05 pm-5:39 pm

2 stops29h 34m

Key West

Sun 11/1

2:35 pm-10:10 pm

1 stop26h 35m

$827
Quickest round-trip

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sun 10/4

9:55 am-7:17 pm

1 stop14h 22m

Key West

Sat 10/10

2:01 pm-12:35 pm

1 stop17h 34m

$834

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Thu 8/6

2:00 pm-11:27 am

1 stop26h 27m

Key West

Sun 8/16

12:05 pm-10:00 am

1 stop16h 55m

$880

LondonKey West

LCY - EYW

LCYEYW

London City

Sun 10/4

8:45 pm-7:50 pm

2 stops28h 05m

Key West

Sat 10/10

6:00 pm-5:20 pm

2 stops18h 20m

$883

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 10/1

4:00 pm-1:29 pm

1 stop26h 29m

Key West

Sun 11/1

4:00 pm-7:55 am

1 stop34h 55m

$883

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Thu 8/6

2:00 pm-11:27 am

1 stop26h 27m

Key West

Sun 8/16

12:05 pm-10:00 am

1 stop16h 55m

$893

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sun 8/23

8:30 am-1:29 pm

2 stops33h 59m

Key West

Sun 9/6

2:15 pm-7:15 am

1 stop12h 00m

$948

LondonKey West

LCY - EYW

LCYEYW

London City

Thu 10/1

7:00 pm-5:24 pm

2 stops27h 24m

Key West

Sun 11/1

7:40 am-5:20 pm

2 stops28h 40m

$1,156

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, April 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 $219. If you are unable to visit Key West during the month of April, then departing from United Kingdom during the month August is also very affordable. Most momondo users find prices during this month for around $416.

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

You could potentially save up to 45% 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

13h 03m

Direct flights

None
The fastest flight from United Kingdom to Key West takes 13h 03m
There are no direct flights from United Kingdom to Key West. There are no popular flight routes from United Kingdom to Key West.
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Frequently asked questions about flying from the United Kingdom to Key West

  • 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.

An easier way to manage your Key West trip

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