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Cheap flights from London to Key West from £394

LON — EYW
2 Oct — 9 Oct1
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

Fri 9/1007:45 -
1 stop34h 44m
Sat 24/1016:00 -
2 stops38h 25m
Deal found 31/8£494
Tue 13/1006:50 -
2 stops35h 39m
Tue 20/1014:15 -
2 stops37h 15m
Deal found 29/8£555
Sat 10/1008:00 -
2 stops58h 29m
Sat 24/1016:00 -
1 stop16h 00m
Deal found 29/8£578
Mon 12/1008:40 -
2 stops33h 49m
Mon 19/1014:15 -
2 stops37h 45m
Deal found 28/8£604
Thu 15/1014:00 -
1 stop25h 19m
Thu 22/1010:59 -
1 stop18h 01m
Deal found 31/8£675
Mon 12/1009:40 -
2 stops36h 35m
Mon 19/1010:59 -
1 stop18h 01m
Deal found 28/8£706
Wed 14/1019:15 -
2 stops29h 18m
Wed 21/1013:43 -
2 stops18h 27m
Deal found 30/8£712
Mon 12/1019:15 -
2 stops29h 18m
Mon 19/1013:43 -
2 stops18h 37m
Deal found 28/8£863
Thu 15/1021:20 -
3 stops43h 19m
Thu 22/1012:29 -
3 stops41h 51m
Deal found 31/8£864
Mon 7/919:15 -
2 stops28h 16m
Wed 7/1013:43 -
2 stops18h 27m
Deal found 29/8£874
Mon 7/917:00 -
2 stops29h 23m
Wed 7/1018:10 -
2 stops34h 15m
Deal found 29/8£882
Sun 18/1012:05 -
2 stops28h 34m
Sat 31/1012:46 -
2 stops17h 04m
Deal found 1/9£1,135

Find flight deals from London to Key West

Round-trip from

£494

One-way from

£394

Popular in

June

Cheapest in

September

Average price

£529
United Airlines
  • United Airlines
  • 9/10-24/10
  • 2 total stops
  • 40h 29m total
  • London to Key West
Search Deals
29/10
  • 29/10
  • 1 total stop
  • 24h 39m total
  • London to Key West
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£40 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 September 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

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Fri 9/10

18:00-13:29

1 stop24h 29m

Key West

Sat 24/10

16:00-13:00

1 stop16h 00m

£494

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Sat 10/10

08:00-13:29

2 stops58h 29m

Key West

Sat 24/10

16:00-13:00

1 stop16h 00m

£578

LondonKey West

LGW London Gatwick - EYW Key West

LGWEYW

London Gatwick

Thu 15/10

14:00-10:19

1 stop25h 19m

Key West

Thu 22/10

10:59-10:00

1 stop18h 01m

£675

LondonKey West

LGW London Gatwick - EYW Key West

LGWEYW

London Gatwick

Mon 12/10

09:40-17:15

2 stops36h 35m

Key West

Mon 19/10

10:59-10:00

1 stop18h 01m

£706

LondonKey West

LCY London City - EYW Key West

LCYEYW

London City

Wed 14/10

19:15-19:33

2 stops29h 18m

Key West

Wed 21/10

13:43-13:10

2 stops18h 27m

£712

LondonKey West

LCY London City - EYW Key West

LCYEYW

London City

Mon 12/10

19:15-19:33

2 stops29h 18m

Key West

Mon 19/10

13:43-13:20

2 stops18h 37m

£863

LondonKey West

LGW London Gatwick - EYW Key West

LGWEYW

London Gatwick

Thu 15/10

21:20-11:39

3 stops43h 19m

Key West

Thu 22/10

12:29-11:20

3 stops41h 51m

£864

LondonKey West

LGW London Gatwick - EYW Key West

LGWEYW

London Gatwick

Sun 18/10

12:05-11:39

2 stops28h 34m

Key West

Sat 31/10

12:46-09:50

2 stops17h 04m

£1,135
Fastest return journey

LondonKey West

LCY London City - EYW Key West

LCYEYW

London City

Tue 13/10

20:15-17:15

2 stops26h 00m

Key West

Tue 20/10

14:00-08:50

2 stops13h 50m

£1,277

LondonKey West

LGW London Gatwick - EYW Key West

LGWEYW

London Gatwick

Sun 18/10

12:05-11:39

2 stops28h 34m

Key West

Sat 31/10

12:46-09:50

2 stops41h 04m

£1,278

Flights are sorted by cheapest return flights first.

Deals found on 29/8

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 £437). Flying from London to Key West in June is currently the most expensive (average of £863). 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 typical for this route at the moment.
London to Key West flights typically cost between £468 and £585 in October.
The cheapest return price found within the last 5 days was £494 on United Airlines (9 Oct–24 Oct).

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

Atlanta (ATL) – chosen by Cheapflights users on 62% 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 £422.

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
7.4
Good
695 reviews
Check prices

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Food

6.9

Overall

7.4

Crew

8.1

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
7.4
Good
695 reviews
Virgin Atlantic
7.4
Good
695 reviews
Check prices

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Food

6.9

Overall

7.4

Crew

8.1

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
8,196 reviews
Virgin Atlantic
7.4
Good
695 reviews
Check prices

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Food

6.9

Overall

7.4

Crew

8.1

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. 2 airlines 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 £494, United Airlines can have you in Key West from London in 24h 29m. The distance from London to Key West is about 4539 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from London to Key West round-trip?

    Virgin Atlantic, at £437, was found to be the cheapest airline from London to Key West. An alternate airline flying to your destination would be British Airways. These flights start at 34% 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 £437). Flying from London to Key West in June is currently the most expensive (average of £863). 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 2 airlines flying from London to Key West

AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£437Average£659FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£486Average£710FlexibilityNo cancel feeOn-time70%
Search British Airways 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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Of course! You can now track prices for flights from London to Key West and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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