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Cheap flights from London to Florida Keys from £357

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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
26 Jun — 3 Jul1
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 27 May 2026.

Thu 11/621:50
LTN
-
MIA
1 stop23h 10m
Multiple Airlines
Tue 16/616:40
MIA
-
LTN
1 stop22h 25m
Multiple Airlines
Deal found 22/5£526
Mon 22/620:55
LHR
-
MIA
1 stop22h 50m
Virgin Atlantic
Mon 13/718:00
MIA
-
LHR
1 stop14h 15m
Virgin Atlantic
Deal found 25/5£526
Wed 8/710:25
LGW
-
MIA
1 stop12h 25m
KLM
Wed 15/723:00
MIA
-
LGW
1 stop12h 00m
KLM
Deal found 25/5£526
Wed 8/712:15
LHR
-
MIA
Nonstop9h 40m
Finnair
Wed 15/722:40
MIA
-
LHR
Nonstop8h 55m
Finnair
Deal found 23/5£526
Wed 16/912:15
STN
-
MIA
2 stops35h 30m
Multiple Airlines
Wed 23/921:30
MIA
-
STN
2 stops21h 40m
Multiple Airlines
Deal found 25/5£527
Wed 26/808:55
LHR
-
MIA
1 stop13h 55m
Multiple Airlines
Tue 8/915:35
MIA
-
LHR
1 stop12h 15m
Multiple Airlines
Deal found 26/5£527
Sat 3/1017:25
LGW
-
MIA
1 stop30h 20m
Air Europa
Sat 17/1021:30
MIA
-
LGW
1 stop30h 30m
Air Europa
Deal found 24/5£527
Wed 23/912:15
STN
-
MIA
2 stops35h 30m
Multiple Airlines
Wed 30/921:30
MIA
-
STN
2 stops21h 40m
Multiple Airlines
Deal found 25/5£528
Wed 2/920:55
LHR
-
MIA
1 stop22h 50m
Virgin Atlantic
Sat 12/922:35
MIA
-
LHR
Nonstop9h 00m
Virgin Atlantic
Deal found 22/5£528
Mon 16/1121:35
LGW
-
MIA
2 stops22h 15m
TAP AIR PORTUGAL
Mon 25/116:50
MIA
-
LGW
1 stop17h 55m
TAP AIR PORTUGAL
Deal found 24/5£528
Thu 25/606:30
LHR
-
MIA
1 stop13h 15m
Virgin Atlantic
Wed 8/722:35
MIA
-
LHR
Nonstop9h 00m
Virgin Atlantic
Deal found 27/5£529
Wed 8/710:25
LGW
-
MIA
1 stop15h 20m
Multiple Airlines
Wed 15/719:59
MIA
-
LGW
2 stops15h 01m
Multiple Airlines
Deal found 25/5£529

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 27 May 2026.

Round-trip from

£526

One-way from

£357

Popular in

December

Cheapest in

September

Average price

£540
11/6-16/6
  • 11/6-16/6
  • 2 total stops
  • 45h 35m total
  • London to Florida Keys
Search Deals
4/6
  • 4/6
  • 1 total stop
  • 17h 50m total
  • London to Florida Keys
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 27 May 2026.
Use the filters below to find and compare flights from London to Florida Keys that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 2/11

07:05-18:05

2 stops16h 00m

Miami

Fri 27/11

19:55-09:35

2 stops32h 40m

£527

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 22/9

06:30-14:45

1 stop13h 15m

Miami

Wed 30/9

18:05-08:05

Nonstop9h 00m

£536

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Wed 21/10

10:55-20:00

1 stop14h 05m

Miami

Fri 30/10

22:45-09:20

1 stop30h 35m

£538

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 18/8

11:30-20:05

1 stop13h 35m

Miami

Thu 3/9

17:00-06:55

Nonstop8h 55m

£544

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Thu 10/9

06:30-14:45

1 stop13h 15m

Miami

Mon 14/9

18:05-08:05

Nonstop9h 00m

£550

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Mon 28/9

10:25-23:01

2 stops17h 36m

Miami

Fri 16/10

20:10-16:00

1 stop14h 50m

£556

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Mon 6/7

17:00-10:24

2 stops22h 24m

Miami

Tue 21/7

18:00-16:00

2 stops17h 00m

£558

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Thu 27/8

15:50-20:45

Nonstop9h 55m

Miami

Tue 8/9

22:35-12:35

Nonstop9h 00m

£558
Fastest return journey

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 13/7

09:55-14:30

Nonstop9h 35m

Miami

Mon 27/7

17:00-06:55

Nonstop8h 55m

£558

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Mon 8/6

10:45-12:10

1 stop30h 25m

Miami

Tue 30/6

16:46-10:40

1 stop12h 54m

£559

Flights are sorted by cheapest return flights first.

Deals found on 25/5

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
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, September is the cheapest month in which you can book a flight from London to Florida Keys (average of £432). Flying from London to Florida Keys in December is currently the most expensive (average of £656). 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 far ahead should I book a flight from London to Florida Keys?

The best time to book flights from London to Florida Keys is 38 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 27 May 2026.
Read reviews from past customers who have flown with Finnair,Virgin Atlantic, andNorse Atlantic UK 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.
Finnair
7.7
Good
1,399 reviews
Check prices

Food

6.7

Boarding

7.7

Overall

7.7

Crew

8.2

Entertainment

6.9

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
Finnair
7.7
Good
1,399 reviews
Finnair
7.7
Good
1,399 reviews
Check prices

Food

6.7

Boarding

7.7

Overall

7.7

Crew

8.2

Entertainment

6.9

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
Virgin Atlantic
7.5
Good
689 reviews
Finnair
7.7
Good
1,399 reviews
Check prices

Food

6.7

Boarding

7.7

Overall

7.7

Crew

8.2

Entertainment

6.9

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
Norse Atlantic UK
7.2
Good
Finnair
7.7
Good
1,399 reviews
Check prices

Food

6.7

Boarding

7.7

Overall

7.7

Crew

8.2

Entertainment

6.9

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
American Airlines
7.1
Good
11,643 reviews
Finnair
7.7
Good
1,399 reviews
Check prices

Food

6.7

Boarding

7.7

Overall

7.7

Crew

8.2

Entertainment

6.9

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
British Airways
6.7
Okay
8,007 reviews
Finnair
7.7
Good
1,399 reviews
Check prices

Food

6.7

Boarding

7.7

Overall

7.7

Crew

8.2

Entertainment

6.9

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.

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 15m. Fly via Scandinavian Airlines, Delta, or LEVEL 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 £143. However, be on the lookout for offers from TAP AIR PORTUGAL and Aer Lingus, 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 Stansted - 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, September is the cheapest month in which you can book a flight from London to Florida Keys (average of £432). Flying from London to Florida Keys in December is currently the most expensive (average of £656). 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 27 May 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£480Average£555FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£492Average£745FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£515Average£554FlexibilityNo 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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