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Cheap flights from London to Florida Keys from £345

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 23/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Florida Keys

Enter your travel dates to find the best prices.

Cheapest flights from London to Florida Keys
Explore the most affordable flight options available from London to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2026.

Mon 2/209:15
LCY
-
MIA
1 stop13h 15m
SWISS
Mon 16/219:50
MIA
-
LCY
1 stop16h 15m
SWISS
Deal found 20/1£386
Mon 9/211:25
LHR
-
MIA
1 stop14h 20m
Iberia
Mon 16/222:20
MIA
-
LHR
Nonstop8h 45m
Iberia
Deal found 21/1£386
Sat 18/412:45
LTN
-
MIA
1 stop36h 15m
Multiple Airlines
Mon 27/421:45
MIA
-
LTN
1 stop15h 20m
Multiple Airlines
Deal found 21/1£386
Tue 10/319:40
LGW
-
MIA
2 stops29h 58m
British Airways
Wed 18/317:15
MIA
-
LGW
1 stop11h 45m
British Airways
Deal found 20/1£386
Mon 2/209:00
LHR
-
MIA
1 stop13h 30m
SWISS
Tue 10/219:50
MIA
-
LHR
2 stops15h 50m
SWISS
Deal found 20/1£386
Mon 2/210:00
LGW
-
MIA
1 stop14h 30m
Air Europa
Mon 16/221:45
MIA
-
LGW
1 stop30h 15m
Air Europa
Deal found 21/1£386
Wed 20/507:30
LHR
-
MIA
2 stops20h 29m
United Airlines
Thu 28/508:00
MIA
-
LHR
2 stops17h 55m
United Airlines
Deal found 20/1£387
Fri 30/110:00
LGW
-
MIA
1 stop14h 30m
Air Europa
Mon 2/221:45
MIA
-
LGW
1 stop13h 40m
Air Europa
Deal found 21/1£387
Sat 21/208:00
LHR
-
MIA
1 stop14h 24m
United Airlines
Thu 26/217:35
MIA
-
LHR
1 stop12h 40m
United Airlines
Deal found 20/1£388
Wed 11/312:30
LGW
-
MIA
1 stop12h 53m
British Airways
Wed 25/318:04
MIA
-
LGW
1 stop10h 56m
British Airways
Deal found 22/1£388
Tue 3/209:15
LCY
-
MIA
1 stop13h 15m
SWISS
Wed 11/219:50
MIA
-
LCY
1 stop12h 05m
SWISS
Deal found 21/1£389
Fri 20/207:25
LHR
-
MIA
2 stops19h 34m
United Airlines
Sat 7/318:34
MIA
-
LHR
1 stop31h 06m
United Airlines
Deal found 22/1£389

Find flight deals from London to Florida Keys

Keep the following information in mind while searching for London to Florida Keys flight deals. Data was last updated 22 January 2026.

Round-trip from

£386

One-way from

£345

Popular in

December

Cheapest in

September

Average price

£463
SWISS
  • SWISS
  • 2/2-16/2
  • 2 total stops
  • 29h 30m total
  • London to Florida Keys
Search Deals
29/5
  • 29/5
  • 2 total stops
  • 31h 55m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Florida Keys 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 22 January 2026.
Use the filters below to find and compare flights from London to Florida Keys that are best for you.

Fly from

London

Fly to

Florida Keys

Route

Depart

Return

Price

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 10/2

06:30-14:50

1 stop13h 20m

Miami

Mon 16/2

19:26-11:40

1 stop11h 14m

£386

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 7/2

12:00-20:29

1 stop13h 29m

Miami

Sat 14/2

18:30-11:05

1 stop11h 35m

£389

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 20/2

12:05-15:39

1 stop32h 34m

Miami

Sat 7/3

18:34-06:40

1 stop31h 06m

£389

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 9/2

11:45-00:51

2 stops18h 06m

Miami

Tue 17/2

12:00-07:50

1 stop14h 50m

£389

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 20/2

08:00-17:24

1 stop14h 24m

Miami

Sat 28/2

18:35-10:50

1 stop11h 15m

£393

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 30/3

08:40-14:45

1 stop35h 05m

Miami

Mon 6/4

18:25-08:05

Nonstop8h 40m

£395

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 9/2

14:45-20:10

Nonstop10h 25m

Miami

Tue 17/2

22:00-11:45

Nonstop8h 45m

£397

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 11/2

14:00-19:25

Nonstop10h 25m

Miami

Tue 17/2

22:00-11:45

Nonstop8h 45m

£398

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 11/2

14:00-19:25

Nonstop10h 25m

Miami

Mon 16/2

17:10-07:00

Nonstop8h 50m

£398

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 11/5

06:15-20:25

1 stop19h 10m

Miami

Sun 24/5

21:45-07:40

1 stop28h 55m

£398

Flights are sorted by cheapest return flights first.

Deals found on 22/1

Showing 1-10 of 60 results
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2
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6

Best time to book a flight from London to Florida Keys

Have a flexible travel schedule? Discover the best time to fly to Florida Keys 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 Florida Keys

What is the cheapest month to book a flight from London to Florida Keys?

Currently, February is the cheapest month in which you can book a flight from London to Florida Keys (average of £435). Flying from London to Florida Keys in June is currently the most expensive (average of £624). 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 Florida Keys

Get insights into the airlines that provide service to Florida Keys. 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 Florida Keys. Reviews last updated 22 January 2026.
Read reviews from past customers who have flown with KLM, Finnair, andVirgin Atlantic from London to Florida Keys. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,442 reviews
Check prices

Boarding

7.8

Overall

7.7

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,442 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Boarding

7.8

Overall

7.7

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Finnair
7.6
Good
1,353 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Boarding

7.8

Overall

7.7

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Boarding

7.8

Overall

7.7

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Norse Atlantic UK
7.2
Good
KLM
7.7
Good
1,442 reviews
Check prices

Boarding

7.8

Overall

7.7

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,689 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Boarding

7.8

Overall

7.7

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

Find useful and relevant information for your journey from London to Florida Keys. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to Florida Keys?

    There are many flights that can get you from London to Florida Keys in 13h 20m. Fly via Delta, United Airlines, or Air Europa to get the fastest option. Airlines will cover a distance of 4414 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from London to Florida Keys one-way?

    The cheapest airline one-way is Norse Atlantic UK, with whom users have recently found tickets for as low as £148. However, be on the lookout for offers from A.P.G. and TAP AIR PORTUGAL, as they are both options that can get you from London to Florida Keys for a low price.

  • What are the most popular routes from London to Florida Keys?

    While some choose either London Gatwick - Miami or London City - Miami, London Heathrow - Miami is the most popular route from London to Florida Keys.

  • Can I find deals for flights from London to Florida Keys that include hotel bookings?

    Yes. In addition to deals on London to Florida Keys flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Florida Keys?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Florida Keys.

  • Can I find deals for business class flights from London to Florida Keys?

    Yes. Cheapflights offers flight deals from London to Florida Keys 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 Florida Keys?

    Currently, February is the cheapest month in which you can book a flight from London to Florida Keys (average of £435). Flying from London to Florida Keys in June is currently the most expensive (average of £624). 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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Alternative routes for London to Florida Keys

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 Florida Keys

Discover the top 3 airlines that operate flights from London to Florida Keys. 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 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£450Average£506FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£491Average£788FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£516Average£555FlexibilityNo 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 Florida Keys?

Cheapflights helps you search for flights from London to Florida Keys 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 Florida Keys?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to Florida Keys.

Can Cheapflights find flights from London to Florida Keys with no change fees?

Yes, we can. To see specific flights from London to Florida Keys with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from London to Florida Keys become cheaper?

Of course! You can now track prices for flights from London to Florida Keys 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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