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Cheap flights from London to Florida Keys from £328

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
27 May — 3 Jun1
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 April 2026.

Sun 24/506:30
LHR
-
MIA
1 stop13h 15m
Multiple Airlines
Tue 9/618:05
MIA
-
LHR
Nonstop9h 00m
Multiple Airlines
Deal found 22/4£503
Tue 24/1121:20
LGW
-
MIA
2 stops29h 25m
TAP AIR PORTUGAL
Sun 29/1116:50
MIA
-
LGW
1 stop17h 55m
TAP AIR PORTUGAL
Deal found 24/4£503
Tue 5/521:15
LGW
-
MIA
2 stops22h 20m
TAP AIR PORTUGAL
Mon 25/116:50
MIA
-
LGW
1 stop17h 55m
TAP AIR PORTUGAL
Deal found 23/4£504
Fri 5/605:40
LTN
-
MIA
1 stop19h 20m
Multiple Airlines
Mon 15/621:45
MIA
-
LTN
1 stop20h 15m
Multiple Airlines
Deal found 23/4£505
Thu 30/415:35
LHR
-
MIA
Nonstop9h 40m
British Airways
Sun 3/522:40
MIA
-
LHR
Nonstop8h 55m
British Airways
Deal found 26/4£505
Fri 20/1110:00
LGW
-
MIA
1 stop14h 30m
Air Europa
Wed 25/1121:45
MIA
-
LGW
1 stop13h 40m
Air Europa
Deal found 26/4£505
Sun 24/515:50
LHR
-
MIA
Nonstop9h 55m
Virgin Atlantic
Tue 9/622:35
MIA
-
LHR
Nonstop9h 00m
Virgin Atlantic
Deal found 23/4£505
Wed 9/916:30
LHR
-
MIA
1 stop27h 45m
ITA Airways
Tue 6/1019:45
MIA
-
LHR
1 stop32h 55m
ITA Airways
Deal found 22/4£506
Wed 20/507:45
STN
-
MIA
1 stop17h 15m
Multiple Airlines
Wed 27/521:45
MIA
-
STN
1 stop16h 35m
Multiple Airlines
Deal found 22/4£507
Wed 13/512:15
LHR
-
MIA
Nonstop9h 45m
Finnair
Tue 19/521:15
MIA
-
LHR
Nonstop8h 50m
Finnair
Deal found 24/4£507
Sun 6/920:50
LHR
-
MIA
1 stop28h 10m
LEVEL
Mon 14/921:45
MIA
-
LHR
1 stop17h 20m
LEVEL
Deal found 22/4£508
Fri 23/1007:10
LGW
-
MIA
1 stop17h 50m
LEVEL
Mon 2/1121:45
MIA
-
LGW
1 stop29h 05m
LEVEL
Deal found 22/4£508

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 April 2026.

Round-trip from

£503

One-way from

£328

Popular in

December

Cheapest in

September

Average price

£528
Air France
  • Air France
  • 24/5-9/6
  • 1 total stop
  • 22h 15m total
  • London to Florida Keys
Search Deals
14/5
  • 14/5
  • 1 total stop
  • 17h 45m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£3 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 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 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 April 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

LGW - MIA

LGWMIA

London Gatwick

Tue 19/5

14:30-20:00

1 stop34h 30m

Miami

Wed 27/5

21:45-08:30

1 stop29h 45m

£512

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 12/5

12:20-20:59

1 stop13h 39m

Miami

Tue 2/6

16:15-08:40

1 stop11h 25m

£539

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 23/10

09:55-20:00

1 stop15h 05m

Miami

Mon 2/11

21:45-09:10

1 stop30h 25m

£539

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sun 24/5

06:30-14:45

1 stop13h 15m

Miami

Tue 9/6

15:25-08:50

1 stop12h 25m

£541

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Mon 8/6

12:20-20:45

1 stop13h 25m

Miami

Tue 30/6

09:03-10:40

1 stop20h 37m

£544

LondonMiami

SEN - MIA

SENMIA

London Southend

Wed 10/6

08:25-20:00

1 stop16h 35m

Miami

Wed 17/6

21:45-21:50

1 stop19h 05m

£548
Fastest return journey

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Thu 1/10

15:50-20:45

Nonstop9h 55m

Miami

Tue 20/10

22:35-12:35

Nonstop9h 00m

£559

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 24/6

09:55-14:30

Nonstop9h 35m

Miami

Wed 15/7

17:00-12:15

1 stop14h 15m

£559

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 17/6

08:40-23:21

2 stops19h 41m

Miami

Wed 8/7

07:02-06:20

1 stop18h 18m

£561

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sun 31/5

06:30-14:45

1 stop13h 15m

Miami

Mon 15/6

22:35-12:35

Nonstop9h 00m

£562

Flights are sorted by cheapest return flights first.

Deals found on 22/4

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

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 6 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.

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 £411). Flying from London to Florida Keys in December is currently the most expensive (average of £652). 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 27 April 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
1,391 reviews
Check prices

Boarding

7.7

Crew

8.2

Entertainment

6.9

Food

6.7

Comfort

7.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.7
Good
1,391 reviews
Finnair
7.7
Good
1,391 reviews
Check prices

Boarding

7.7

Crew

8.2

Entertainment

6.9

Food

6.7

Comfort

7.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Virgin Atlantic
7.4
Good
688 reviews
Finnair
7.7
Good
1,391 reviews
Check prices

Boarding

7.7

Crew

8.2

Entertainment

6.9

Food

6.7

Comfort

7.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Norse Atlantic UK
7.2
Good
Finnair
7.7
Good
1,391 reviews
Check prices

Boarding

7.7

Crew

8.2

Entertainment

6.9

Food

6.7

Comfort

7.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
American Airlines
7.1
Good
11,668 reviews
Finnair
7.7
Good
1,391 reviews
Check prices

Boarding

7.7

Crew

8.2

Entertainment

6.9

Food

6.7

Comfort

7.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
British Airways
6.7
Okay
7,917 reviews
Finnair
7.7
Good
1,391 reviews
Check prices

Boarding

7.7

Crew

8.2

Entertainment

6.9

Food

6.7

Comfort

7.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

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 LEVEL, British Airways, or Delta 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 £175. 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 Stansted - Miami or London Gatwick - 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 £411). Flying from London to Florida Keys in December is currently the most expensive (average of £652). 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 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£477Average£552FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£489Average£741FlexibilityNo 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 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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