Which airlines fly to Key West?

There may be other airlines that fly to Key West from United Kingdom, but the most popular among our users are Virgin Atlantic, British Airways, Finnair and American Airlines. These airlines should offer flights to Key West on a routine basis if you’re flying from one of the more popular airports in United Kingdom.

Virgin Atlantic Flights to Key West

Virgin Atlantic is a popular choice for users travelling to Key West. It operates 14 flights every week to Key West, most often flying from Atlanta Hartsfield-Jackson. Virgin Atlantic ticket prices will depend on when and where you need to fly from - deals as low as £502 (from London Heathrow) have been found by momondo users. In 673 reviews, momondo users have rated Virgin Atlantic at an average score of 7.5/10.

American Airlines Flights to Key West

American Airlines (7.2/10, 11,045 reviews) is also a popular choice for flights to Key West, with deals from as low as £529 from London Heathrow, round-trip. With 22 American Airlines flights to Key West on average each week, prices can vary significantly by origin and availability.

How long does it take to fly to Key West?

The flight from United Kingdom to Key West depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from London Heathrow (a popular airport in United Kingdom) to Key West (the most popular airport in Key West), then the flight time is 12h 53m on average. If you fly from Manchester (another popular airport in United Kingdom) to Key West, then the average flight time is 18h 30m.

£475 Cheap Flights to Key West in 2025/26

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10:55 - 19:44LHR-EYW

13h 49m1 stop

14:35 - 10:50EYW-LHR

15h 15m2 stops

£475Virgin Atlantic

Find Deal

Tue, 31 Mar - Wed, 8 Apr

09:40 - 19:44LHR-EYW

15h 04m2 stops

18:00 - 20:00EYW-LHR

21h 00m2 stops

£484Virgin Atlantic

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Tue, 31 Mar - Wed, 8 Apr

11:20 - 10:59LGW-EYW

27h 39m2 stops

20:01 - 07:30EYW-LGW

31h 29m2 stops

£498American Airlines

Find Deal

Thu, 12 Mar - Mon, 16 Mar

06:30 - 17:13LHR-EYW

15h 43m2 stops

18:00 - 13:30EYW-LHR

14h 30m1 stop

£512KLM

Find Deal

Tue, 7 Apr - Mon, 13 Apr

08:40 - 17:13LHR-EYW

37h 33m2 stops

18:00 - 13:30EYW-LHR

14h 30m1 stop

£513KLM

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Wed, 8 Apr - Mon, 13 Apr

12:55 - 11:03LHR-EYW

27h 08m2 stops

14:35 - 13:30EYW-LHR

17h 55m1 stop

£548Delta

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Wed, 8 Apr - Mon, 13 Apr

11:20 - 10:57LGW-EYW

28h 37m2 stops

16:37 - 07:30EYW-LGW

33h 53m2 stops

£552American Airlines

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Thu, 8 Jan - Mon, 12 Jan

19:15 - 23:56LCY-EYW

33h 41m2 stops

19:45 - 08:50EYW-LCY

32h 05m2 stops

£578British Airways

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Thu, 8 Jan - Mon, 12 Jan

13:30 - 11:25MAN-EYW

26h 55m1 stop

12:20 - 10:10EYW-MAN

16h 50m2 stops

£620Delta

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Thu, 22 Jan - Mon, 26 Jan

18:00 - 19:39MAN-EYW

30h 39m2 stops

16:37 - 17:40EYW-MAN

44h 03m2 stops

£856British Airways

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Sun, 4 Jan - Sun, 11 Jan

Fly from

Route

Depart

Return

Price

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 31/3

10:55-19:44

1 stop13h 49m

Key West

Wed 8/4

14:35-10:50

2 stops15h 15m

£475

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 31/3

09:40-19:44

2 stops15h 04m

Key West

Wed 8/4

18:00-20:00

2 stops21h 00m

£484

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Thu 12/3

11:20-10:59

2 stops27h 39m

Key West

Mon 16/3

20:01-07:30

2 stops31h 29m

£498

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 7/4

06:30-17:13

2 stops15h 43m

Key West

Mon 13/4

18:00-13:30

1 stop14h 30m

£512

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 8/4

08:40-17:13

2 stops37h 33m

Key West

Mon 13/4

18:00-13:30

1 stop14h 30m

£513

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 8/4

12:55-11:03

2 stops27h 08m

Key West

Mon 13/4

14:35-13:30

1 stop17h 55m

£548

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Thu 8/1

11:20-10:57

2 stops28h 37m

Key West

Mon 12/1

16:37-07:30

2 stops33h 53m

£552

LondonKey West

LCY - EYW

LCYEYW

London City

Thu 8/1

19:15-23:56

2 stops33h 41m

Key West

Mon 12/1

19:45-08:50

2 stops32h 05m

£578

ManchesterKey West

MAN - EYW

MANEYW

Manchester

Thu 22/1

13:30-11:25

1 stop26h 55m

Key West

Mon 26/1

12:20-10:10

2 stops16h 50m

£620

ManchesterKey West

MAN - EYW

MANEYW

Manchester

Sun 4/1

18:00-19:39

2 stops30h 39m

Key West

Sun 11/1

16:37-17:40

2 stops44h 03m

£856

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

Key West flights insights and trends

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

Prices

Other information

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 February is also cheap. Prices for this month can be found on momondo for an average of £531.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from United Kingdom is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £535. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Key West on Thursday is £668.

What is the cheapest time of day to depart on your flight to Key West?

According to our data, the cheapest time of day to fly to Key West is in the morning. momondo users have found flights departing from United Kingdom to Key West in the morning for as low as £587. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around £837. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 AIRPORT	May	31% cheaper	Flying from London Heathrow Airport to Key West costs on average just £475 in May
MOST EXPENSIVE MONTH TO FLY TO KEY WEST FROM LONDON HEATHROW AIRPORT	March	42% more expensive	It costs about £972 for flights to Key West from London Heathrow Airport in March
MOST POPULAR MONTH TO FLY TO KEY WEST FROM LONDON HEATHROW AIRPORT	August	620% more users visited	More 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 Round-Trip Price	£475
Fastest flight time	13h 49m
Popular in	October

The best round-trip flight price to Key West from United Kingdom in the last 72 hours is £475 (London Heathrow to Key West).

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The fastest flight to Key West from United Kingdom takes 13h 49m (London Heathrow to Key West).

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October has the highest demand for flights to Key West, with a 16% price increase on average.

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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 November 2025, there are 5 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.

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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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£475 Cheap flights to Key West

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight to Key West departing on 31/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

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 February is also cheap. Prices for this month can be found on momondo for an average of £531.

What is the cheapest day to depart on your flight to Key West?

What is the cheapest time of day to depart on your flight to Key West?

How long does it take to fly to Key West?

Cheapest flights to Key West

Find the cheapest flights to Key West from your nearest city or airport

Cheap Key West flight deals and tips

Summary info about Key West flight prices, duration and airlines

Best Round-Trip Price

Fastest flight time

Popular in

Frequently asked questions about flying to Key West

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

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

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

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

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

Travelling to a place near Key West?

Why use momondo?

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

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

How can momondo help me find flights to Key West?

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

An easier way to manage your Key West trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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