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Cheap flights from London to Florida Keys from £326

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 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
9 Aug — 16 Aug1
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 10 July 2026.

Thu 1/1006:00
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Sun 11/1016:20
MIA
-
LHR
1 stop25h 35m
TAP AIR PORTUGAL
Deal found 7/7£465
Sun 4/1020:35
LTN
-
MIA
2 stops27h 10m
Multiple Airlines
Sun 11/1021:30
MIA
-
LTN
2 stops17h 25m
Multiple Airlines
Deal found 6/7£466
Fri 18/906:00
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Sat 26/916:20
MIA
-
LHR
1 stop15h 25m
TAP AIR PORTUGAL
Deal found 10/7£466
Thu 1/1020:35
LGW
-
MIA
2 stops30h 20m
Multiple Airlines
Sun 11/1016:20
MIA
-
LGW
2 stops26h 05m
Multiple Airlines
Deal found 7/7£466
Tue 6/1012:45
LTN
-
MIA
2 stops30h 50m
Multiple Airlines
Mon 12/1016:20
MIA
-
LTN
2 stops17h 00m
Multiple Airlines
Deal found 6/7£467
Thu 1/1020:50
LHR
-
MIA
1 stop28h 10m
LEVEL
Mon 12/1022:00
MIA
-
LHR
1 stop17h 05m
LEVEL
Deal found 9/7£467
Wed 2/908:20
STN
-
MIA
2 stops20h 05m
Multiple Airlines
Sun 13/900:30
MIA
-
STN
2 stops27h 15m
Multiple Airlines
Deal found 9/7£468
Thu 10/906:00
LHR
-
MIA
1 stop13h 35m
TAP AIR PORTUGAL
Sun 20/916:20
MIA
-
LHR
1 stop15h 25m
TAP AIR PORTUGAL
Deal found 8/7£468
Fri 30/1010:40
LGW
-
MIA
1 stop16h 05m
TAP AIR PORTUGAL
Wed 11/1116:50
MIA
-
LGW
1 stop17h 15m
TAP AIR PORTUGAL
Deal found 8/7£468
Thu 15/1012:45
LTN
-
MIA
2 stops30h 50m
Multiple Airlines
Wed 21/1003:50
MIA
-
LTN
2 stops26h 05m
Multiple Airlines
Deal found 7/7£468
Wed 7/1011:20
LHR
-
MIA
1 stop17h 05m
TAP AIR PORTUGAL
Sun 11/1016:20
MIA
-
LHR
1 stop21h 30m
TAP AIR PORTUGAL
Deal found 10/7£468
Mon 12/1016:25
LGW
-
MIA
1 stop27h 10m
TAP AIR PORTUGAL
Sun 18/1016:20
MIA
-
LGW
1 stop12h 25m
TAP AIR PORTUGAL
Deal found 6/7£468

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 10 July 2026.

Round-trip from

£465

One-way from

£326

Popular in

December

Cheapest in

September

Average price

£594
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 1/10-11/10
  • 2 total stops
  • 39h 10m total
  • London to Florida Keys
Search Deals
29/10
  • 29/10
  • 1 total stop
  • 27h 19m total
  • London to Florida Keys
Search Deals
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 10 July 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

LTN - MIA

LTNMIA

London Luton

Tue 15/9

13:40-18:45

1 stop34h 05m

Miami

Thu 17/9

21:30-11:50

1 stop33h 20m

£494

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Mon 26/10

16:35-15:50

1 stop27h 15m

Miami

Fri 30/10

00:50-09:50

1 stop29h 00m

£494

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 6/10

08:45-17:25

1 stop13h 40m

Miami

Wed 11/11

13:44-11:05

2 stops16h 21m

£505

LondonMiami

LTN - MIA

LTNMIA

London Luton

Thu 1/10

08:00-20:05

1 stop17h 05m

Miami

Mon 12/10

22:00-19:05

1 stop16h 05m

£509

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 15/12

09:00-17:30

1 stop13h 30m

Miami

Tue 29/12

16:06-12:00

1 stop14h 54m

£515

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 15/9

08:45-17:25

1 stop13h 40m

Miami

Fri 25/9

08:54-06:55

2 stops17h 01m

£515

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 18/11

09:00-17:30

1 stop13h 30m

Miami

Sun 22/11

09:00-06:20

2 stops16h 20m

£518

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 8/12

13:45-14:45

1 stop30h 00m

Miami

Tue 5/1

17:20-20:35

1 stop22h 15m

£518

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 3/11

06:00-15:20

1 stop14h 20m

Miami

Thu 12/11

17:10-06:50

Nonstop8h 40m

£522
Fastest return journey

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 21/10

11:30-20:05

1 stop13h 35m

Miami

Thu 29/10

23:00-11:30

Nonstop8h 30m

£522

Flights are sorted by cheapest return flights first.

Deals found on 7/7

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 £459). Flying from London to Florida Keys in December is currently the most expensive (average of £659). 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 74 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 10 July 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
7.6
Good
1,418 reviews
Check prices

Overall

7.6

Boarding

7.7

Comfort

7.4

Crew

8.2

Food

6.7

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Finnair
7.6
Good
1,418 reviews
Finnair
7.6
Good
1,418 reviews
Check prices

Overall

7.6

Boarding

7.7

Comfort

7.4

Crew

8.2

Food

6.7

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Virgin Atlantic
7.5
Good
693 reviews
Finnair
7.6
Good
1,418 reviews
Check prices

Overall

7.6

Boarding

7.7

Comfort

7.4

Crew

8.2

Food

6.7

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Norse Atlantic UK
7.2
Good
Finnair
7.6
Good
1,418 reviews
Check prices

Overall

7.6

Boarding

7.7

Comfort

7.4

Crew

8.2

Food

6.7

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
American Airlines
7.1
Good
11,807 reviews
Finnair
7.6
Good
1,418 reviews
Check prices

Overall

7.6

Boarding

7.7

Comfort

7.4

Crew

8.2

Food

6.7

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
British Airways
6.7
Okay
8,107 reviews
Finnair
7.6
Good
1,418 reviews
Check prices

Overall

7.6

Boarding

7.7

Comfort

7.4

Crew

8.2

Food

6.7

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

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 40m. Fly via TAP AIR PORTUGAL, United Airlines, or Virgin Atlantic 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 £178. 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 £459). Flying from London to Florida Keys in December is currently the most expensive (average of £659). 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 10 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£472Average£665FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£482Average£558FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£517Average£556FlexibilityNo 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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