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Cheap flights from London to Key West from £282

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
30 Apr — 7 May1
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
Explore the most affordable flight options available from London to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2026.

Wed 13/506:30
LHR
-
EYW
2 stops21h 28m
British Airways
Wed 20/515:58
EYW
-
LHR
1 stop14h 07m
British Airways
Deal found 29/3£537
Tue 8/906:15
LHR
-
EYW
2 stops17h 24m
British Airways
Thu 17/913:59
EYW
-
LHR
1 stop11h 56m
British Airways
Deal found 26/3£550
Thu 17/906:15
LHR
-
EYW
2 stops17h 12m
British Airways
Mon 21/913:59
EYW
-
LHR
1 stop11h 56m
British Airways
Deal found 30/3£575
Tue 8/906:30
LHR
-
EYW
2 stops18h 15m
Delta
Thu 17/907:00
EYW
-
LHR
2 stops19h 15m
Delta
Deal found 26/3£589
Sat 26/906:15
LHR
-
EYW
2 stops17h 12m
British Airways
Wed 30/919:51
EYW
-
LHR
1 stop11h 44m
British Airways
Deal found 28/3£598
Tue 12/513:40
LHR
-
EYW
1 stop31h 22m
United Airlines
Tue 19/514:49
EYW
-
LHR
1 stop11h 26m
United Airlines
Deal found 28/3£602
Thu 3/1207:50
LCY
-
EYW
2 stops40h 44m
British Airways
Mon 7/1212:00
EYW
-
LCY
2 stops15h 50m
British Airways
Deal found 29/3£632
Wed 13/508:25
LCY
-
EYW
2 stops40h 24m
KLM
Wed 20/518:19
EYW
-
LCY
2 stops17h 21m
KLM
Deal found 29/3£648
Wed 15/414:00
LGW
-
EYW
1 stop24h 06m
Multiple Airlines
Fri 17/413:06
EYW
-
LGW
1 stop15h 54m
Multiple Airlines
Deal found 30/3£648
Wed 13/509:35
LCY
-
EYW
2 stops42h 23m
British Airways
Wed 20/511:24
EYW
-
LCY
2 stops22h 51m
British Airways
Deal found 28/3£767
Thu 18/619:15
LCY
-
EYW
2 stops28h 55m
British Airways
Mon 22/619:40
EYW
-
LCY
2 stops38h 35m
British Airways
Deal found 29/3£875
Thu 14/509:35
LCY
-
EYW
2 stops42h 23m
British Airways
Thu 21/513:39
EYW
-
LCY
2 stops20h 36m
British Airways
Deal found 30/3£893

Find flight deals from London to Key West

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Key West (EYW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 31 March 2026.

Round-trip from

£537

One-way from

£282

Popular in

December

Cheapest in

March

Average price

£517
British Airways
  • British Airways
  • 13/5-20/5
  • 3 total stops
  • 35h 35m total
  • London to Key West
Search Deals
19/4
  • 19/4
  • 1 total stop
  • 27h 26m total
  • London to Key West
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£29 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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, Cheapflights users made 858,174 searches. Data last updated 31 March 2026.
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 - EYW

LHREYW

London Heathrow

Tue 8/9

09:55-18:39

1 stop13h 44m

Key West

Thu 17/9

13:59-06:55

1 stop11h 56m

£569

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 17/9

06:15-18:27

2 stops17h 12m

Key West

Mon 21/9

13:59-18:55

2 stops23h 56m

£608

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sat 26/9

06:15-18:27

2 stops17h 12m

Key West

Wed 30/9

19:51-22:15

2 stops45h 24m

£609

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 13/5

06:30-19:49

2 stops18h 19m

Key West

Wed 20/5

18:19-14:35

2 stops15h 16m

£621

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 15/5

12:15-22:58

1 stop15h 43m

Key West

Fri 22/5

13:39-06:55

1 stop12h 16m

£644

LondonKey West

LCY - EYW

LCYEYW

London City

Wed 13/5

08:25-19:49

2 stops40h 24m

Key West

Wed 20/5

18:19-16:40

2 stops17h 21m

£648
Fastest return journey

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 14/5

15:00-22:58

1 stop12h 58m

Key West

Thu 21/5

13:39-06:55

1 stop12h 16m

£654

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 16/4

06:30-19:40

2 stops18h 10m

Key West

Sat 25/4

11:45-10:20

2 stops17h 35m

£664

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Wed 15/4

14:00-09:06

1 stop24h 06m

Key West

Fri 17/4

13:06-10:00

1 stop15h 54m

£748

LondonKey West

LCY - EYW

LCYEYW

London City

Wed 13/5

09:35-22:58

2 stops42h 23m

Key West

Wed 20/5

11:24-15:15

2 stops22h 51m

£767

Flights are sorted by cheapest return flights first.

Deals found on 28/3

Showing 1-10 of 42 resultsSorted by cheapest first
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2
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5

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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, May is the cheapest month in which you can book a flight from London to Key West (average of £470). Flying from London to Key West in June is currently the most expensive (average of £634). 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?

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

Share of one-stop return flights from London to Key West chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Atlanta (ATL) – chosen by Cheapflights users on 58% of one-stop itineraries from London to Key West on Cheapflights.

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

Average return fare for one-stop flights from London to Key West, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Newark (EWR) is the most affordable one-stop option, with an average return flight price of £432.

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

Shortest average travel time for one-stop one-way flights from London to Key West, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Charlotte (CLT) have the shortest average one-way travel time for one-stop routes: 13h 01m.

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

Average stopover duration for one-stop one-way flights from London to Key West, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Charlotte (CLT) offer the fastest connection on this route, with an average stopover time of 1h 32m.

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key West. Reviews last updated 31 March 2026.
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
685 reviews
Check prices

Food

6.9

Overall

7.5

Boarding

7.7

Comfort

7.3

Entertainment

7.5

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
685 reviews
Virgin Atlantic
7.5
Good
685 reviews
Check prices

Food

6.9

Overall

7.5

Boarding

7.7

Comfort

7.3

Entertainment

7.5

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,839 reviews
Virgin Atlantic
7.5
Good
685 reviews
Check prices

Food

6.9

Overall

7.5

Boarding

7.7

Comfort

7.3

Entertainment

7.5

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Related info for your journey

Find useful and relevant information for your journey from London to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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. 3 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 £569, British Airways can have you in Key West from London in 13h 44m. 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?

    British Airways, at £470, was found to be the cheapest airline from London to Key West.Alternate airlines flying return to your destination include Virgin Atlantic and American Airlines. These flights start at 26% 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, May is the cheapest month in which you can book a flight from London to Key West (average of £470). Flying from London to Key West in June is currently the most expensive (average of £634). 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

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Alternative routes for London to Key West

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from London to Key West

Discover the top 3 airlines that operate flights from London to Key West. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£470Average£541FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£499Average£774FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£525Average£564FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Key West?

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.

Can Cheapflights notify me if prices for flights from London to Key West become cheaper?

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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