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Cheap flights from the United Kingdom to Key West from £347

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — EYW
18 May — 25 May1
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 18 April 2026.

Wed 2/1207:50
LCY
-
EYW
2 stops44h 17m
British Airways
Sun 6/1220:04
EYW
-
LCY
2 stops31h 46m
British Airways
Deal found 13/4£626
Tue 12/516:40
LHR
-
EYW
2 stops26h 05m
United Airlines
Wed 27/514:26
EYW
-
LHR
1 stop11h 49m
United Airlines
Deal found 13/4£630
Fri 15/509:55
LHR
-
EYW
1 stop18h 03m
British Airways
Fri 22/513:39
EYW
-
LHR
1 stop12h 16m
British Airways
Deal found 13/4£639
Tue 12/516:00
LHR
-
EYW
1 stop26h 45m
Lufthansa
Wed 27/514:26
EYW
-
LHR
1 stop13h 54m
Lufthansa
Deal found 13/4£640
Mon 9/1106:05
MAN
-
EYW
2 stops18h 24m
British Airways
Mon 23/1112:00
EYW
-
MAN
2 stops18h 45m
British Airways
Deal found 15/4£649
Fri 15/516:40
LHR
-
EYW
2 stops27h 27m
United Airlines
Fri 22/514:26
EYW
-
LHR
2 stops15h 14m
United Airlines
Deal found 13/4£655
Mon 9/1106:05
MAN
-
EYW
2 stops18h 24m
Multiple Airlines
Mon 23/1119:30
EYW
-
MAN
2 stops13h 30m
Multiple Airlines
Deal found 15/4£663
Wed 23/907:05
MAN
-
EYW
2 stops16h 22m
British Airways
Mon 28/919:51
EYW
-
MAN
2 stops18h 24m
British Airways
Deal found 14/4£666
Mon 28/1208:00
LHR
-
EYW
1 stop14h 08m
United Airlines
Wed 6/116:05
EYW
-
LHR
1 stop34h 50m
United Airlines
Deal found 16/4£669
Mon 1/616:40
LHR
-
EYW
2 stops25h 50m
United Airlines
Mon 8/614:26
EYW
-
LHR
1 stop12h 54m
United Airlines
Deal found 17/4£680
Thu 18/614:10
LHR
-
EYW
2 stops28h 20m
United Airlines
Mon 22/614:26
EYW
-
LHR
1 stop13h 54m
United Airlines
Deal found 15/4£689
Thu 28/511:05
LHR
-
EYW
1 stop33h 02m
United Airlines
Thu 4/614:26
EYW
-
LHR
2 stops15h 14m
United Airlines
Deal found 13/4£695

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 18 April 2026.

Round-trip from

£630

One-way from

£347

Popular in

December

Cheapest in

March

Average price

£619
United Airlines
  • United Airlines
  • 12/5-27/5
  • 4 total stops
  • 41h 19m total
  • United Kingdom to Key West
Search Deals
British Airways
  • British Airways
  • 5/10
  • 2 total stops
  • 17h 09m total
  • United Kingdom 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 (£9 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 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 18 April 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

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 12/5

16:40-13:45

2 stops26h 05m

Key West

Wed 27/5

14:26-10:40

2 stops15h 14m

£630

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 15/5

15:00-22:58

1 stop12h 58m

Key West

Fri 22/5

13:39-12:00

2 stops17h 21m

£649

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 15/5

16:40-15:07

2 stops27h 27m

Key West

Fri 22/5

14:26-10:40

2 stops15h 14m

£655

ManchesterKey West

MAN - EYW

MANEYW

Manchester

Wed 23/9

07:05-18:27

2 stops16h 22m

Key West

Mon 28/9

19:51-19:15

2 stops18h 24m

£671

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 18/6

16:40-13:30

2 stops25h 50m

Key West

Mon 22/6

14:26-09:20

1 stop13h 54m

£704

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sat 9/5

13:40-16:02

1 stop31h 22m

Key West

Sat 23/5

14:26-07:15

1 stop11h 49m

£731
Fastest return journey

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Mon 1/6

09:55-19:10

1 stop14h 15m

Key West

Mon 8/6

14:21-10:55

1 stop15h 34m

£733

LondonKey West

LGW - EYW

LGWEYW

London Gatwick

Thu 28/5

14:00-11:27

1 stop26h 27m

Key West

Thu 4/6

12:05-10:00

1 stop16h 55m

£736

LondonKey West

LCY - EYW

LCYEYW

London City

Tue 12/5

08:25-17:23

2 stops37h 58m

Key West

Wed 27/5

18:19-16:40

2 stops17h 21m

£764

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 18/6

06:15-19:10

2 stops17h 55m

Key West

Mon 22/6

19:40-18:55

2 stops18h 15m

£776

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 37 resultsSorted by cheapest first
1
2
3
4

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, April is the cheapest month in which you can book a flight from United Kingdom to Key West (average of £162). Flying from United Kingdom 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.

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 18 April 2026.
Check out reviews from past customers who have flown with Virgin Atlantic,American Airlines, andBritish 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
687 reviews
Check prices

Boarding

7.7

Food

6.9

Crew

8.1

Entertainment

7.5

Overall

7.5

Comfort

7.3

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
687 reviews
Virgin Atlantic
7.5
Good
687 reviews
Check prices

Boarding

7.7

Food

6.9

Crew

8.1

Entertainment

7.5

Overall

7.5

Comfort

7.3

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!
American Airlines
7.1
Good
11,604 reviews
Virgin Atlantic
7.5
Good
687 reviews
Check prices

Boarding

7.7

Food

6.9

Crew

8.1

Entertainment

7.5

Overall

7.5

Comfort

7.3

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
7,892 reviews
Virgin Atlantic
7.5
Good
687 reviews
Check prices

Boarding

7.7

Food

6.9

Crew

8.1

Entertainment

7.5

Overall

7.5

Comfort

7.3

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 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 United Airlines, British Airways, and KLM fly from United Kingdom to Key West in about 12h 58m. The time it takes to get you to your destination can typically vary by up to 25h. 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 London City - 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, April is the cheapest month in which you can book a flight from United Kingdom to Key West (average of £162). Flying from United Kingdom 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

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Alternative routes for United Kingdom 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 United Kingdom to Key West

Discover the top 3 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 18 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£452Average£596FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£489Average£719FlexibilityNo 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 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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