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Flights to Key West

£415 Cheap flights to Key West

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Key West departing on 20/5. 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

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
06:25 - 22:58
LHR
-
EYW
21h 33m
2 stops
British Airways Logo
15:58 - 11:05
EYW
-
LHR
14h 07m
1 stop
£466British Airways
Mon, 13 Apr - Wed, 13 May
British Airways Logo
06:25 - 22:58
LHR
-
EYW
21h 33m
2 stops
British Airways Logo
15:58 - 12:35
EYW
-
LHR
15h 37m
1 stop
£472British Airways
Mon, 13 Apr - Wed, 13 May
British Airways Logo
07:50 - 22:58
LHR
-
EYW
20h 08m
2 stops
British Airways Logo
15:58 - 12:35
EYW
-
LHR
15h 37m
1 stop
£482British Airways
Tue, 14 Apr - Tue, 21 Apr
British Airways Logo
15:00 - 22:58
LHR
-
EYW
12h 58m
1 stop
British Airways Logo
15:58 - 12:35
EYW
-
LHR
15h 37m
1 stop
£486British Airways
Mon, 13 Apr - Wed, 13 May
British Airways Logo
15:40 - 22:58
LHR
-
EYW
12h 18m
1 stop
British Airways Logo
11:24 - 06:55
EYW
-
LHR
14h 31m
1 stop
£493British Airways
Mon, 13 Apr - Wed, 13 May
Virgin Atlantic Logo
20:55 - 19:40
LHR
-
EYW
27h 45m
2 stops
Virgin Atlantic Logo
11:48 - 14:35
EYW
-
LHR
21h 47m
2 stops
£493Virgin Atlantic
Mon, 13 Apr - Wed, 13 May
United Airlines Logo
13:40 - 15:57
LHR
-
EYW
31h 17m
1 stop
United Airlines Logo
18:22 - 10:40
EYW
-
LHR
11h 18m
1 stop
£512United Airlines
Mon, 13 Apr - Mon, 20 Apr
KLM Logo
20:15 - 19:40
LCY
-
EYW
52h 25m
2 stops
KLM Logo
18:23 - 17:20
EYW
-
LCY
17h 57m
2 stops
£557KLM
Tue, 14 Apr - Tue, 21 Apr
United Airlines Logo
06:05 - 16:42
MAN
-
EYW
39h 37m
2 stops
United Airlines Logo
16:38 - 17:20
EYW
-
MAN
43h 42m
2 stops
£621United Airlines
Wed, 15 Apr - Wed, 22 Apr
Delta Logo
14:55 - 17:23
MAN
-
EYW
31h 28m
2 stops
Delta Logo
13:22 - 07:15
EYW
-
MAN
12h 53m
1 stop
£786Delta
Mon, 13 Apr - Wed, 13 May

momondo Fare Finder

 
Locate flights to Key West that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 5 March 2026.
Use the filters below to find and compare flights to Key West that are best for you.

Fly from

Route

Depart

Return

Price

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Mon 13/4

06:25-22:58

2 stops21h 33m

Key West

Wed 13/5

15:58-11:05

1 stop14h 07m

£466

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Mon 13/4

06:25-22:58

2 stops21h 33m

Key West

Wed 13/5

15:58-12:35

1 stop15h 37m

£472

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 14/4

07:50-22:58

2 stops20h 08m

Key West

Tue 21/4

15:58-12:35

1 stop15h 37m

£482

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Mon 13/4

15:00-22:58

1 stop12h 58m

Key West

Wed 13/5

15:58-12:35

1 stop15h 37m

£486

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Mon 13/4

15:40-22:58

1 stop12h 18m

Key West

Wed 13/5

11:24-06:55

1 stop14h 31m

£493

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Mon 13/4

20:55-19:40

2 stops27h 45m

Key West

Wed 13/5

11:48-14:35

2 stops21h 47m

£493

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Mon 13/4

13:40-15:57

1 stop31h 17m

Key West

Mon 20/4

18:22-10:40

1 stop11h 18m

£512

LondonKey West

LCY - EYW

LCYEYW

London City

Tue 14/4

20:15-19:40

2 stops52h 25m

Key West

Tue 21/4

18:23-17:20

2 stops17h 57m

£557

ManchesterKey West

MAN - EYW

MANEYW

Manchester

Wed 15/4

06:05-16:42

2 stops39h 37m

Key West

Wed 22/4

16:38-17:20

2 stops43h 42m

£621

ManchesterKey West

MAN - EYW

MANEYW

Manchester

Mon 13/4

14:55-17:23

2 stops31h 28m

Key West

Wed 13/5

13:22-07:15

1 stop12h 53m

£786

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

See travel insights to Key West from

Key West flights insights and trends

Explore insights for your Key West flight to craft the best travel plan

What is the cheapest month to fly to Key West?

If you aren’t able to travel to Key West during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £524.

Cheapest flights to Key West

Find the cheapest flights to Key West from your nearest city or airport
Find flights from London Heathrow Airport to Key West
CHEAPEST MONTH TO FLY TO KEY WEST FROM LONDON HEATHROW AIRPORTMay27% cheaperFlying from London Heathrow Airport to Key West costs on average just £484 in May
MOST EXPENSIVE MONTH TO FLY TO KEY WEST FROM LONDON HEATHROW AIRPORTMarch45% more expensiveIt costs about £954 for flights to Key West from London Heathrow Airport in March
MOST POPULAR MONTH TO FLY TO KEY WEST FROM LONDON HEATHROW AIRPORTAugust600% more users visitedMore momondo users searched in flights to Key West from London Heathrow Airport in August than any other month

Cheap Key West flight deals and tips

Summary info about Key West flight prices, duration and airlines

Best One-Way Price

£415

Best Round-Trip Price

£466

Fastest flight time

12h 23m

Popular in

August
The best one-way flight price to Key West from United Kingdom in the last 72 hours is £415 (London Heathrow to Key West).
Search Deals
The best round-trip flight price to Key West from United Kingdom in the last 72 hours is £466 (London Heathrow to Key West).
Search Deals
The fastest flight to Key West from United Kingdom takes 12h 23m (London Heathrow to Key West).
Search Deals
August has the highest demand for flights to Key West, with a 9% price increase on average.
Search Deals

Frequently asked questions about flying to Key West

What is there to do in Key West when it’s raining?

Users planning a flight to Key West during the months of August or September should anticipate rain. There are still things to do in Key West even when it's raining, though. Many tourists kill time during rain and storms by going to shopping centres in the area, like Duval Street.

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

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

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

As of March 2026, there are 4 operators available to choose from for flights to Key West Airport.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Key West Airport.

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

The travel and health documents you'll need for your trip to Key West Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Key West?

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

Why use momondo?

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

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 Key West.

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

momondo does allow users to show only those flights to Key West which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights 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 to Key West.

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

Yes. momondo can track flight prices for Key West and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Key West

Popular Flights to Key West

Popular routes according to searches in the past day on momondo
London to Key West Flightsfrom £709
Edinburgh Turnhouse to Key West Flightsfrom £795
Glasgow to Key West Flightsfrom £792
Norwich Arpt to Key West Flightsfrom £1,852
Manchester to Key West Flightsfrom £775