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Cheap flights from London to Key West from £313

LON — EYW
9 Dec — 16 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Key West

Enter your travel dates to find the best prices.

Cheapest flights from London to Key West

Thu 3/1207:40 -
1 stop32h 44m
Thu 10/1212:05 -
1 stop12h 50m
Deal found 5/11£555
Sat 26/1213:35 -
1 stop27h 06m
Wed 6/115:15 -
1 stop25h 05m
Deal found 8/11£570
Mon 7/1206:05 -
2 stops18h 25m
Mon 14/1220:00 -
1 stop11h 05m
Deal found 7/11£614
Mon 7/1206:15 -
2 stops18h 15m
Mon 14/1216:41 -
2 stops14h 19m
Deal found 7/11£653
Wed 2/1210:50 -
1 stop14h 11m
Sun 6/1218:06 -
2 stops34h 49m
Deal found 4/11£668
Thu 3/1219:05 -
2 stops29h 25m
Thu 10/1211:26 -
1 stop14h 19m
Deal found 5/11£669
Mon 7/1207:30 -
3 stops60h 56m
Mon 14/1212:05 -
2 stops17h 45m
Deal found 7/11£743
Mon 21/1210:25 -
1 stop33h 58m
Wed 6/115:15 -
1 stop25h 05m
Deal found 5/11£755
Wed 2/1219:40 -
2 stops28h 50m
Sun 6/1213:44 -
2 stops16h 06m
Deal found 4/11£758
Thu 3/1210:00 -
2 stops39h 01m
Thu 10/1218:06 -
2 stops40h 39m
Deal found 5/11£791
Tue 22/1218:40 -
2 stops46h 43m
Tue 29/1213:13 -
2 stops23h 37m
Deal found 7/11£1,071
Thu 3/1210:10 -
3 stops31h 13m
Thu 10/1213:14 -
2 stops21h 36m
Deal found 5/11£1,080

Find flight deals from London to Key West

Round-trip from

£517

One-way from

£313

Popular in

June

Cheapest in

October

Average price

£770
United Airlines
  • United Airlines
  • 20/1-17/2
  • 4 total stops
  • 64h 21m total
  • London to Key West
Search Deals
10/1-31/12
  • 10/1-31/12
  • 1 total stop
  • 29h 39m total
  • London to Key West
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£44 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonKey West

LGW London Gatwick - EYW Key West

LGWEYW

London Gatwick

Sun 10/1

09:40-10:19

1 stop29h 39m

Key West

Wed 31/12

00:00-06:00

Nonstop0h 00m

£313
Fastest return journey

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Sun 10/1

12:40-20:49

1 stop13h 09m

Key West

Wed 31/12

00:00-06:00

Nonstop0h 00m

£499

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Wed 20/1

07:30-12:16

2 stops33h 46m

Key West

Wed 17/2

18:20-05:55

2 stops30h 35m

£517

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Tue 12/1

12:50-14:13

1 stop30h 23m

Key West

Tue 9/2

15:15-09:10

1 stop12h 55m

£546

LondonKey West

LGW London Gatwick - EYW Key West

LGWEYW

London Gatwick

Sun 24/1

09:40-10:19

1 stop29h 39m

Key West

Thu 28/1

10:59-05:50

1 stop13h 51m

£575

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Thu 25/2

15:10-14:05

1 stop27h 55m

Key West

Mon 1/3

15:10-10:25

1 stop14h 15m

£644

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Thu 3/12

19:05-19:30

2 stops29h 25m

Key West

Thu 10/12

11:26-06:45

1 stop14h 19m

£669

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Wed 2/12

17:20-17:10

2 stops52h 50m

Key West

Sun 6/12

18:06-09:55

2 stops34h 49m

£678

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Sat 6/3

10:25-14:32

2 stops33h 07m

Key West

Sat 13/3

18:20-06:40

1 stop31h 20m

£682

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Sun 10/1

06:05-19:20

2 stops18h 15m

Key West

Wed 31/12

00:00-06:00

Nonstop0h 00m

£742

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from London to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from London with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from London to Key West

What is the cheapest month to book a flight from London to Key West?

Currently, August is the cheapest month in which you can book a flight from London to Key West (average of £442). Flying from London to Key West in June is currently the most expensive (average of £874). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from London to Key West?

Airfare is below average for this route at the moment.
London to Key West flights typically cost between £709 and £947 in January.
The cheapest return price found within the last 5 days was £517 on United Airlines (20 Jan–17 Feb).

What’s the top stopover airport for flights from London to Key West?

Atlanta (ATL) – chosen by Cheapflights users on 59% of one-stop itineraries from London to Key West on Cheapflights.

What’s the cheapest stopover airport for flights from London to Key West?

Newark (EWR) is the most affordable one-stop option, with an average return flight price of £428.

What’s the fastest stopover option from London to Key West?

Flights via Charlotte (CLT) have the shortest average one-way travel time for one-stop routes: 12h 58m.

Which airport typically offers the quickest stopover for flights from London to Key West?

Flights via Newark (EWR) offer the fastest connection on this route, with an average stopover time of 1h 39m.

Reviews of airlines servicing Key West

Check out reviews from past customers who have flown with Virgin Atlantic and British Airways from London to Key West to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
698 reviews
Check prices

Overall

7.5

Entertainment

7.5

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
698 reviews
Virgin Atlantic
7.5
Good
698 reviews
Check prices

Overall

7.5

Entertainment

7.5

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,285 reviews
Virgin Atlantic
7.5
Good
698 reviews
Check prices

Overall

7.5

Entertainment

7.5

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Related info for your journey

  • What airport do you fly into for flights to Key West from London?

    Key West (EYW), located 2.6 mi from the city center, is the airport you fly into when you book flights from London to Key West. 1 airline have flights to Key West from London on a regular basis. Booking flights from London to Key West should not be difficult; the airport handles an average of 0 inbound flights from London per day.

  • How long is the flight from London to Key West?

    For as low as £758, United Airlines can have you in Key West from London in 28h 50m. The distance from London to Key West is about 4555 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from London to Key West round-trip?

    Virgin Atlantic, at £417, was found to be the cheapest airline from London to Key West.. This flight start at 39% lower than the current average price 3 months from now.

  • What are the most popular routes from London to Key West?

    The most popular route from London to Key West is London Heathrow - Key West. You may also consider London City - Key West or London Gatwick - Key West.

  • Can I find deals for flights from London to Key West that include hotel bookings?

    Yes. In addition to deals on London to Key West flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Key West.

  • Can I find deals for business class flights from London to Key West?

    Yes. Cheapflights offers flight deals from London to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Key West?

    Currently, August is the cheapest month in which you can book a flight from London to Key West (average of £442). Flying from London to Key West in June is currently the most expensive (average of £874). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from London to Key West

AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£417Average£611FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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Cheapflights helps you search for flights from London to Key West via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to Key West?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Key West from London.

Can Cheapflights find flights from London to Key West with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Key West flexibly with Cheapflights today.

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