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Cheap flights from London to Key West from £285

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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Find 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 27 November 2025.

Thu 27/1114:00LGW - EYW
1 stop23h 15mMultiple Airlines
Thu 4/1208:55EYW - LGW
2 stops40h 05mMultiple Airlines
Deal found 26/11£592
Thu 27/1109:20LHR - EYW
1 stop31h 33mIcelandair
Thu 4/1212:47EYW - LHR
1 stop13h 08mIcelandair
Deal found 26/11£753
Thu 27/1106:30LHR - EYW
2 stops18h 23mDelta
Thu 4/1212:38EYW - LHR
2 stops15h 07mDelta
Deal found 26/11£794
Thu 27/1107:45LCY - EYW
2 stops17h 08mDelta
Thu 4/1212:38EYW - LCY
2 stops14h 32mDelta
Deal found 26/11£827

Cheap 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 27 November 2025.

Round-trip from

£472

One-way from

£285

Popular in

December

Cheapest in

September

Average price

£535
Virgin Atlantic
  • Virgin Atlantic
  • 25/1-31/1
  • 2 total stops
  • 45h 14m total
  • London to Key West
Search Deals
15/4
  • 15/4
  • 1 total stop
  • 24h 06m total
  • London to Key West
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£34 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 27 November 2025.
Use the filters below to find and compare flights from London to Key West that are best for you.

Fly from

London

Fly to

Key West

Route

Depart

Return

Price

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Thu 8/1

11:20-10:57

2 stops28h 37m

Key West

Mon 12/1

19:45-07:30

2 stops30h 45m

£493

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 8/4

09:20-19:41

1 stop15h 21m

Key West

Mon 13/4

18:00-13:30

1 stop14h 30m

£505

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 8/4

10:55-10:57

1 stop29h 02m

Key West

Mon 13/4

07:00-13:30

1 stop25h 30m

£505

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 8/1

10:35-23:56

2 stops18h 21m

Key West

Mon 12/1

19:45-19:00

2 stops18h 15m

£523

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 8/1

08:55-17:11

1 stop13h 16m

Key West

Mon 12/1

18:06-06:25

1 stop31h 19m

£523

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 8/1

12:05-16:22

1 stop33h 17m

Key West

Mon 12/1

18:05-06:40

1 stop31h 35m

£525

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sat 10/1

18:00-15:17

2 stops26h 17m

Key West

Sat 17/1

14:05-09:10

1 stop14h 05m

£532

LondonKey West

LCY - EYW

LCYEYW

London City

Thu 8/1

08:40-13:48

2 stops34h 08m

Key West

Mon 12/1

18:06-08:50

2 stops33h 44m

£580

LondonKey West

LCY - EYW

LCYEYW

London City

Thu 8/1

09:20-19:40

2 stops39h 20m

Key West

Mon 12/1

18:06-08:50

2 stops33h 44m

£613

LondonKey West

LCY - EYW

LCYEYW

London City

Sat 10/1

10:00-17:11

2 stops36h 11m

Key West

Sat 17/1

18:14-07:15

2 stops32h 01m

£761

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 16 results
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
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, March is the cheapest month in which you can book a flight from London to Key West (average of £446). Flying from London to Key West in July is currently the most expensive (average of £638). 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.

What is the cheapest time of day to fly from LON to EYW?

Find hourly flight availability from London to Key West. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 November 2025.

It’s optimal to fly from London to Key West at midday. By choosing this option you can save up to 44% on the cost of your flight, compared to a flight in the evening.

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 55% 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.

Charlotte (CLT) is the most affordable one-stop option, with an average return flight price of £551.

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 Miami (MIA) have the shortest average one-way travel time for one-stop routes: 13h 25m.

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 56m.

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 27 November 2025.
Check out reviews from past customers who have flown with KLM, Finnair, andVirgin Atlantic 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.
KLM
7.7
Good
1,423 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,423 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Finnair
7.6
Good
1,334 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
675 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,539 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 £505, American Airlines can have you in Key West from London in 15h 21m. 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 £458, 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 27% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from London to Key West one-way?

    The cheapet airlines for a one-way flight from London to Key West are British Airways (£312), Virgin Atlantic (£355), and United Airlines (£1,841).

  • 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, March is the cheapest month in which you can book a flight from London to Key West (average of £446). Flying from London to Key West in July is currently the most expensive (average of £638). 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

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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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£458Average£551FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£500Average£840FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£525Average£565FlexibilityNo 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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