Find flights
When to book
Airlines
FAQs

Cheap flights from London to Key West from £478

LON — EYW
22 Nov — 29 Nov1
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

Wed 2/1212:05 -
2 stops52h 19m
Wed 9/1216:10 -
2 stops33h 30m
Deal found 18/10£478
Thu 3/1213:45 -
2 stops50h 39m
Thu 10/1212:05 -
1 stop12h 50m
Deal found 19/10£563
Thu 3/1219:40 -
2 stops28h 50m
Thu 10/1211:26 -
2 stops16h 49m
Deal found 19/10£668
Wed 28/1012:45 -
2 stops27h 42m
Sat 28/1111:25 -
1 stop15h 50m
Deal found 21/10£884
Wed 28/1011:15 -
1 stop12h 18m
Sat 28/1119:37 -
1 stop11h 28m
Deal found 21/10£897
Mon 28/1213:05 -
2 stops36h 53m
Mon 4/118:00 -
2 stops31h 50m
Deal found 21/10£905
Sat 31/1009:20 -
1 stop31h 36m
Fri 6/1112:46 -
1 stop13h 09m
Deal found 20/10£909
Sat 31/1006:50 -
2 stops37h 39m
Fri 6/1114:51 -
1 stop13h 19m
Deal found 20/10£923
Mon 28/1216:30 -
1 stop29h 16m
Mon 4/114:45 -
1 stop16h 25m
Deal found 21/10£932

Find flight deals from London to Key West

Round-trip from

£478

Popular in

June

Cheapest in

October

Average price

£559
United Airlines
  • United Airlines
  • 2/12-9/12
  • 3 total stops
  • 65h 09m total
  • London to Key West
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£55 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 October 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

Wed 2/12

12:05-11:24

2 stops52h 19m

Key West

Wed 9/12

16:10-06:40

2 stops33h 30m

£478
Fastest return journey

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Fri 5/3

13:35-11:11

1 stop26h 36m

Key West

Tue 9/3

18:20-06:40

1 stop31h 20m

£519

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Sat 6/3

10:00-15:55

1 stop34h 55m

Key West

Sat 13/3

16:45-09:10

2 stops35h 25m

£538

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Thu 3/12

13:45-11:24

2 stops50h 39m

Key West

Thu 10/12

12:05-05:55

1 stop12h 50m

£563

Flights are sorted by cheapest return flights first.

Deals found on 18/10

Sorted by cheapest first

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 £441). Flying from London to Key West in June is currently the most expensive (average of £872). 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 £599 and £708 in December.
The cheapest return price found within the last 5 days was £478 on United Airlines (2 Dec–9 Dec).

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

Atlanta (ATL) – chosen by Cheapflights users on 66% 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 £427.

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
697 reviews
Check prices

Boarding

7.7

Overall

7.5

Food

6.9

Comfort

7.3

Entertainment

7.5

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
7.5
Good
697 reviews
Virgin Atlantic
7.5
Good
697 reviews
Check prices

Boarding

7.7

Overall

7.5

Food

6.9

Comfort

7.3

Entertainment

7.5

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
8,267 reviews
Virgin Atlantic
7.5
Good
697 reviews
Check prices

Boarding

7.7

Overall

7.5

Food

6.9

Comfort

7.3

Entertainment

7.5

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 £478, United Airlines can have you in Key West from London in 52h 19m. The distance from London to Key West is about 4539 mi.

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

    Virgin Atlantic, at £441, 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 £441). Flying from London to Key West in June is currently the most expensive (average of £872). 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£441Average£595FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£491Average£719FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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.