Find flights
When to book
Airlines
FAQs

Cheap flights from London to Key West from £328

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
28 May — 4 Jun1
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 28 April 2026.

Tue 29/909:55
LHR
-
EYW
1 stop13h 32m
Multiple Airlines
Thu 1/1019:51
EYW
-
LHR
2 stops20h 49m
Multiple Airlines
Deal found 26/4£597
Tue 29/911:15
LHR
-
EYW
1 stop13h 30m
Virgin Atlantic
Thu 1/1018:00
EYW
-
LHR
1 stop32h 15m
Virgin Atlantic
Deal found 26/4£634
Mon 8/606:50
LHR
-
EYW
2 stops37h 17m
United Airlines
Mon 15/614:26
EYW
-
LHR
1 stop25h 14m
United Airlines
Deal found 24/4£642
Tue 9/606:50
LHR
-
EYW
2 stops35h 40m
United Airlines
Tue 16/614:26
EYW
-
LHR
1 stop13h 54m
United Airlines
Deal found 25/4£643
Thu 18/614:00
LGW
-
EYW
1 stop26h 27m
Multiple Airlines
Mon 22/612:07
EYW
-
LGW
1 stop16h 53m
Multiple Airlines
Deal found 23/4£648
Mon 25/506:50
LHR
-
EYW
2 stops37h 17m
United Airlines
Mon 1/614:26
EYW
-
LHR
1 stop14h 59m
United Airlines
Deal found 24/4£661
Tue 26/516:40
LHR
-
EYW
2 stops25h 50m
United Airlines
Tue 2/614:26
EYW
-
LHR
1 stop25h 59m
United Airlines
Deal found 27/4£667
Mon 25/514:10
LHR
-
EYW
1 stop29h 57m
Lufthansa
Mon 1/614:26
EYW
-
LHR
1 stop25h 14m
Lufthansa
Deal found 24/4£675
Mon 8/619:15
LCY
-
EYW
2 stops28h 55m
British Airways
Mon 15/613:39
EYW
-
LCY
2 stops38h 21m
British Airways
Deal found 24/4£806
Mon 25/520:40
LGW
-
EYW
2 stops27h 30m
British Airways
Mon 1/619:40
EYW
-
LGW
2 stops19h 20m
British Airways
Deal found 24/4£818
Tue 26/517:50
LCY
-
EYW
2 stops54h 59m
KLM
Tue 2/618:19
EYW
-
LCY
2 stops18h 01m
KLM
Deal found 26/4£828
Thu 18/619:15
LCY
-
EYW
2 stops28h 55m
British Airways
Mon 22/619:40
EYW
-
LCY
2 stops38h 35m
British Airways
Deal found 25/4£939

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 28 April 2026.

Round-trip from

£597

One-way from

£328

Popular in

December

Cheapest in

March

Average price

£619
British Airways
  • British Airways
  • 29/9-1/10
  • 3 total stops
  • 34h 21m total
  • London to Key West
Search Deals
13/5
  • 13/5
  • 2 total stops
  • 49h 27m total
  • London to Key West
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 28 April 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 9/6

06:50-13:30

2 stops35h 40m

Key West

Tue 16/6

14:26-09:20

1 stop13h 54m

£643

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Mon 25/5

06:50-15:07

2 stops37h 17m

Key West

Mon 1/6

14:26-06:55

2 stops35h 29m

£661

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Mon 8/6

15:20-13:30

1 stop27h 10m

Key West

Mon 15/6

14:26-20:40

1 stop25h 14m

£665

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 26/5

08:00-13:30

2 stops34h 30m

Key West

Tue 2/6

14:26-05:55

1 stop34h 29m

£667

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 16/6

06:50-15:07

2 stops37h 17m

Key West

Tue 23/6

14:26-21:00

2 stops49h 34m

£682

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 2/7

08:00-15:07

1 stop36h 07m

Key West

Tue 21/7

14:26-09:20

1 stop13h 54m

£696
Fastest return journey

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 18/6

14:05-13:30

2 stops28h 25m

Key West

Mon 22/6

14:26-08:20

1 stop12h 54m

£707

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Thu 18/6

14:00-18:27

2 stops33h 27m

Key West

Mon 22/6

12:07-10:00

1 stop16h 53m

£773

LondonKey West

LCY - EYW

LCYEYW

London City

Mon 8/6

19:15-19:10

2 stops28h 55m

Key West

Mon 15/6

13:39-09:00

2 stops38h 21m

£806

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Mon 25/5

20:40-19:10

2 stops27h 30m

Key West

Mon 1/6

19:40-20:00

2 stops19h 20m

£818

Flights are sorted by cheapest return flights first.

Deals found on 23/4

Showing 1-10 of 42 resultsSorted by cheapest first
1
2
3
...
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, April is the cheapest month in which you can book a flight from London to Key West (average of £162). Flying from London to Key West in August is currently the most expensive (average of £502). 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 £422.

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 28 April 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
7.4
Good
688 reviews
Check prices

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.4

Boarding

7.7

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
7.4
Good
688 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.4

Boarding

7.7

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
7,929 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.4

Boarding

7.7

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 £806, United Airlines can have you in Key West from London in 28h 55m. The distance from London to Key West is about 4560 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 £461, 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 25% 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 Gatwick - Key West or London City - 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, April is the cheapest month in which you can book a flight from London to Key West (average of £162). Flying from London to Key West in August is currently the most expensive (average of £502). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Key West

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Orlando flights
Heathrow to Miami flights
Manchester to Orlando flights
Gatwick to Orlando flights
Stansted to Orlando flights
Gatwick to Miami flights
Stansted to Miami flights
London City to Miami flights
Heathrow to Tampa flights
London City to Orlando flights
Luton to Miami flights
Luton to Orlando flights
Edinburgh to Orlando flights
Gatwick to Fort Lauderdale flights
Heathrow to Fort Lauderdale flights
Gatwick to Tampa flights
Stansted to Tampa flights
London City to Tampa flights
Manchester to Miami flights
Heathrow to West Palm Beach flights
Southend to Miami flights
Gatwick to West Palm Beach flights
Heathrow to Fort Myers flights
Luton to Tampa flights
Birmingham to Orlando flights
Heathrow to Jacksonville flights
Manchester to Fort Lauderdale flights
Manchester to Tampa flights
Gatwick to Jacksonville flights
Edinburgh to Miami flights
Heathrow to Melbourne flights
Gatwick to Fort Myers flights
Heathrow to Pensacola flights
Newcastle upon Tyne to Orlando flights
Stansted to Fort Myers flights
Luton to Fort Lauderdale flights
Birmingham to Miami flights
Birmingham to Tampa flights
Stansted to Fort Lauderdale flights
Newcastle upon Tyne to Miami flights
Heathrow to Sarasota flights
Gatwick to Panama City flights
London City to Fort Lauderdale flights
Heathrow to Panama City flights
London City to Jacksonville flights
Bristol to Orlando flights
Edinburgh to Sarasota flights
Edinburgh to Fort Lauderdale flights
Birmingham to Fort Lauderdale flights
Southampton to Miami flights

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 28 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£477Average£552FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£489Average£741FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£512Average£551FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.