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Cheap flights from the United Kingdom to Key West from £348

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 20/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — EYW
14 Sep — 21 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Key West

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Key West
Explore the most affordable flight options available from United Kingdom to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2026.

Sun 27/914:00 -
1 stop25h 19m
Sun 4/1010:59 -
1 stop18h 01m
Deal found 13/8£503
Mon 28/909:20 -
1 stop15h 40m
Mon 5/1014:00 -
1 stop11h 25m
Deal found 13/8£569
Tue 15/918:05 -
2 stops24h 06m
Thu 15/1017:28 -
2 stops13h 42m
Deal found 13/8£573
Mon 7/920:00 -
2 stops27h 31m
Wed 7/1013:43 -
1 stop14h 17m
Deal found 10/8£581
Mon 28/909:55 -
1 stop14h 22m
Mon 5/1020:03 -
1 stop11h 32m
Deal found 14/8£586
Thu 24/909:20 -
1 stop13h 03m
Thu 1/1014:00 -
1 stop12h 15m
Deal found 10/8£597
Mon 7/919:45 -
2 stops29h 15m
Wed 7/1018:10 -
2 stops17h 05m
Deal found 10/8£597
Tue 15/911:15 -
1 stop13h 45m
Thu 15/1011:51 -
1 stop13h 34m
Deal found 13/8£600
Mon 7/920:15 -
2 stops26h 08m
Wed 7/1018:10 -
2 stops17h 30m
Deal found 10/8£607
Tue 15/910:35 -
2 stops35h 48m
Thu 15/1011:51 -
2 stops16h 34m
Deal found 13/8£626
Mon 28/919:15 -
2 stops29h 02m
Mon 5/1013:43 -
2 stops18h 37m
Deal found 14/8£626
Wed 2/914:00 -
1 stop26h 25m
Fri 11/910:59 -
1 stop18h 01m
Deal found 12/8£637

Find flight deals from United Kingdom to Key West

Keep the following information in mind while searching for United Kingdom to Key West flight deals. Data was last updated 15 August 2026.

Round-trip from

£503

One-way from

£348

Popular in

December

Cheapest in

September

Average price

£711
27/9-4/10
  • 27/9-4/10
  • 2 total stops
  • 43h 20m total
  • United Kingdom to Key West
Search Deals
20/1
  • 20/1
  • 1 total stop
  • 29h 09m total
  • United Kingdom to Key West
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£25 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 15 August 2026.
Use the filters below to find and compare flights from the United Kingdom to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Mon 23/11

06:15-19:27

2 stops18h 12m

Key West

Thu 26/11

11:29-06:45

1 stop14h 16m

£609

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Sat 14/11

18:00-13:52

2 stops48h 52m

Key West

Sat 21/11

14:50-07:55

2 stops36h 05m

£621

LondonKey West

LGW London Gatwick - EYW Key West

LGWEYW

London Gatwick

Tue 15/9

10:35-17:23

2 stops35h 48m

Key West

Thu 15/10

11:51-09:25

2 stops16h 34m

£626

LondonKey West

LCY London City - EYW Key West

LCYEYW

London City

Mon 28/9

19:15-19:17

2 stops29h 02m

Key West

Mon 5/10

13:43-13:20

2 stops18h 37m

£626

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Tue 1/9

07:30-13:29

2 stops34h 59m

Key West

Sat 31/10

14:50-05:55

2 stops35h 05m

£634

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Thu 24/9

06:15-19:17

2 stops18h 02m

Key West

Thu 1/10

14:34-10:10

2 stops14h 36m

£634

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Wed 2/9

07:30-13:29

2 stops34h 59m

Key West

Fri 11/9

14:20-06:55

2 stops35h 35m

£634

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Fri 25/9

06:50-14:18

2 stops36h 28m

Key West

Fri 2/10

14:15-06:45

2 stops35h 30m

£634

LondonKey West

LGW London Gatwick - EYW Key West

LGWEYW

London Gatwick

Wed 2/9

14:00-11:25

1 stop26h 25m

Key West

Fri 11/9

10:59-10:00

1 stop18h 01m

£637

LondonKey West

LCY London City - EYW Key West

LCYEYW

London City

Tue 15/9

19:15-19:17

2 stops29h 02m

Key West

Thu 15/10

13:43-15:15

2 stops20h 32m

£640

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 37 resultsSorted by cheapest first
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Best time to book a flight from United Kingdom to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from United Kingdom 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 the United Kingdom to Key West

What is the cheapest month to book a flight from United Kingdom to Key West?

Currently, August is the cheapest month in which you can book a flight from United Kingdom to Key West (average of £437). Flying from United Kingdom to Key West in October is currently the most expensive (average of £813). 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.

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 15 August 2026.
Check out reviews from past customers who have flown with Virgin Atlantic and British Airways from the United Kingdom 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
694 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.3

Boarding

7.7

Entertainment

7.5

Food

6.9

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
694 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.3

Boarding

7.7

Entertainment

7.5

Food

6.9

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
8,160 reviews
Virgin Atlantic
7.5
Good
694 reviews
Check prices

Crew

8.1

Overall

7.5

Comfort

7.3

Boarding

7.7

Entertainment

7.5

Food

6.9

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

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom?

    Located just 2.6 mi from the city center, Key West (EYW) is the airport most travelers will use when flying to Key West from United Kingdom.

  • How long is the flight from United Kingdom to Key West?

    Airlines like British Airways, Lufthansa, and Air France fly from United Kingdom to Key West in about 18h 12m. The time it takes to get you to your destination can typically vary by up to 30h 40m. The distance between United Kingdom and 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 most popular routes from United Kingdom to Key West?

    The most popular flight routes from United Kingdom to Key West are London Heathrow - Key West, Manchester - Key West and Edinburgh Turnhouse - Key West.

  • Can I find deals for flights from United Kingdom to Key West that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Key West flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Key West.

  • Can I find deals for business class flights from United Kingdom to Key West?

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to Key West?

    Currently, August is the cheapest month in which you can book a flight from United Kingdom to Key West (average of £437). Flying from United Kingdom to Key West in October is currently the most expensive (average of £813). 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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Top 2 airlines flying from United Kingdom to Key West

Discover the top 2 airlines that operate flights from United Kingdom 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 15 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£467Average£629FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£467Average£750FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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 United Kingdom to Key West?

When you search for this flight from United Kingdom to Key West, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Key West?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to Key West for you. Better yet — we are completely free to use.

Can Cheapflights find flights from United Kingdom to Key West with no change fees?

Need flexible booking options for your flight to Key West from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Key West from United Kingdom today and book when prices fit your budget.

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