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Cheap flights from the United Kingdom to Key West from £436

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — EYW
18 Apr — 25 Apr1
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 19 March 2026.

Tue 28/406:15
LHR
-
EYW
2 stops21h 43m
British Airways
Tue 5/511:24
EYW
-
LHR
1 stop20h 11m
British Airways
Deal found 14/3£509
Wed 29/407:50
LHR
-
EYW
2 stops20h 08m
British Airways
Wed 6/515:58
EYW
-
LHR
1 stop15h 37m
British Airways
Deal found 15/3£535
Wed 29/415:35
LHR
-
EYW
1 stop12h 23m
Multiple Airlines
Wed 6/515:58
EYW
-
LHR
1 stop15h 37m
Multiple Airlines
Deal found 15/3£554
Thu 24/911:30
LHR
-
EYW
2 stops35h 57m
British Airways
Mon 28/919:51
EYW
-
LHR
1 stop30h 04m
British Airways
Deal found 15/3£570
Thu 24/909:20
LHR
-
EYW
1 stop12h 54m
Virgin Atlantic
Mon 28/907:00
EYW
-
LHR
1 stop19h 15m
Virgin Atlantic
Deal found 15/3£573
Thu 16/415:00
LHR
-
EYW
1 stop12h 58m
British Airways
Fri 24/415:58
EYW
-
LHR
1 stop14h 07m
British Airways
Deal found 16/3£579
Wed 29/409:30
GLA
-
EYW
2 stops18h 28m
British Airways
Wed 6/515:58
EYW
-
GLA
2 stops18h 37m
British Airways
Deal found 14/3£580
Thu 30/416:40
LHR
-
EYW
2 stops27h 27m
United Airlines
Thu 7/514:49
EYW
-
LHR
1 stop11h 26m
United Airlines
Deal found 16/3£584
Tue 28/409:35
LCY
-
EYW
2 stops18h 23m
British Airways
Tue 5/515:58
EYW
-
LCY
2 stops18h 17m
British Airways
Deal found 14/3£591
Wed 29/409:35
LCY
-
EYW
2 stops18h 23m
British Airways
Wed 6/515:58
EYW
-
LCY
2 stops16h 12m
British Airways
Deal found 15/3£619
Wed 29/405:40
EDI
-
EYW
2 stops19h 00m
Delta
Wed 6/518:23
EYW
-
EDI
2 stops16h 47m
Delta
Deal found 14/3£624
Wed 23/909:30
MAN
-
EYW
2 stops37h 57m
British Airways
Mon 28/919:51
EYW
-
MAN
2 stops14h 19m
British Airways
Deal found 16/3£626

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 19 March 2026.

Round-trip from

£535

One-way from

£436

Popular in

December

Cheapest in

March

Average price

£513
British Airways
  • British Airways
  • 29/4-6/5
  • 3 total stops
  • 35h 45m total
  • United Kingdom to Key West
Search Deals
British Airways
  • British Airways
  • 20/5
  • 1 total stop
  • 12h 23m total
  • United Kingdom to Key West
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£29 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 19 March 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

Wed 29/4

07:50-22:58

2 stops20h 08m

Key West

Wed 6/5

15:58-12:35

1 stop15h 37m

£535

GlasgowKey West

GLA - EYW

GLAEYW

Glasgow Intl

Wed 29/4

09:30-22:58

2 stops18h 28m

Key West

Wed 6/5

15:58-15:35

2 stops18h 37m

£580

LondonKey West

LCY - EYW

LCYEYW

London City

Tue 28/4

09:35-22:58

2 stops18h 23m

Key West

Tue 5/5

15:58-15:15

2 stops18h 17m

£591

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 30/4

16:40-13:45

2 stops26h 05m

Key West

Thu 7/5

16:05-16:40

2 stops19h 35m

£606
Fastest return journey

LondonKey West

LCY - EYW

LCYEYW

London City

Wed 29/4

09:35-22:58

2 stops18h 23m

Key West

Wed 6/5

15:58-13:10

2 stops16h 12m

£619

EdinburghKey West

EDI - EYW

EDIEYW

Edinburgh Turnhouse

Wed 29/4

05:40-19:40

2 stops19h 00m

Key West

Wed 6/5

18:23-16:10

2 stops16h 47m

£624

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 2/7

11:05-15:07

1 stop33h 02m

Key West

Tue 21/7

16:00-21:35

2 stops24h 35m

£636

EdinburghKey West

EDI - EYW

EDIEYW

Edinburgh Turnhouse

Thu 23/4

10:40-22:58

2 stops17h 18m

Key West

Mon 27/4

11:24-18:35

2 stops26h 11m

£641

EdinburghKey West

EDI - EYW

EDIEYW

Edinburgh Turnhouse

Thu 23/4

12:30-14:51

2 stops31h 21m

Key West

Mon 27/4

18:22-10:35

1 stop11h 13m

£644

EdinburghKey West

EDI - EYW

EDIEYW

Edinburgh Turnhouse

Wed 29/4

12:30-13:45

2 stops30h 15m

Key West

Wed 6/5

14:49-10:35

2 stops14h 46m

£647

Flights are sorted by cheapest return flights first.

Deals found on 15/3

Showing 1-10 of 40 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, September is the cheapest month in which you can book a flight from United Kingdom to Key West (average of £461). Flying from United Kingdom to Key West in June is currently the most expensive (average of £629). 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 19 March 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
682 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

Entertainment

7.6

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
682 reviews
Virgin Atlantic
7.5
Good
682 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

Entertainment

7.6

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
11,469 reviews
Virgin Atlantic
7.5
Good
682 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

Entertainment

7.6

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
7,802 reviews
Virgin Atlantic
7.5
Good
682 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

Entertainment

7.6

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 British Airways, United Airlines, and Delta fly from United Kingdom to Key West in about 19h. The time it takes to get you to your destination can typically vary by up to 7h 05m. The distance between United Kingdom and Key West is about 4381 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, London Gatwick - 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, September is the cheapest month in which you can book a flight from United Kingdom to Key West (average of £461). Flying from United Kingdom to Key West in June is currently the most expensive (average of £629). 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 19 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£459Average£595FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£495Average£741FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£520Average£560FlexibilityNo 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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