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Cheap flights from London to Florida Keys from £309

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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
24 Mar — 31 Mar1
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 February 2026.

Sat 2/510:00
LGW
-
MIA
1 stop13h 45m
Air Europa
Sun 24/521:30
MIA
-
LGW
1 stop13h 55m
Air Europa
Deal found 22/2£380
Tue 17/312:15
LHR
-
MIA
1 stop13h 40m
Icelandair
Wed 25/318:15
MIA
-
LHR
1 stop21h 15m
Icelandair
Deal found 20/2£383
Tue 17/311:55
LGW
-
MIA
1 stop14h 00m
Icelandair
Wed 25/318:15
MIA
-
LGW
1 stop12h 40m
Icelandair
Deal found 20/2£383
Fri 4/909:55
LHR
-
MIA
Nonstop9h 35m
British Airways
Mon 21/917:00
MIA
-
LHR
Nonstop8h 55m
British Airways
Deal found 21/2£386
Wed 18/321:05
LGW
-
MIA
3 stops28h 50m
Multiple Airlines
Tue 24/300:15
MIA
-
LGW
3 stops28h 15m
Multiple Airlines
Deal found 18/2£388
Sat 5/909:55
LHR
-
MIA
Nonstop9h 35m
British Airways
Tue 22/922:40
MIA
-
LHR
Nonstop8h 55m
British Airways
Deal found 21/2£389
Wed 15/415:40
LGW
-
MIA
1 stop35h 15m
Icelandair
Sun 26/418:15
MIA
-
LGW
1 stop15h 25m
Icelandair
Deal found 20/2£390
Sat 18/406:00
LHR
-
MIA
1 stop13h 30m
TAP AIR PORTUGAL
Fri 1/500:20
MIA
-
LHR
1 stop12h 25m
TAP AIR PORTUGAL
Deal found 19/2£392
Mon 13/421:25
LHR
-
MIA
1 stop29h 30m
Icelandair
Sun 26/418:15
MIA
-
LHR
1 stop12h 40m
Icelandair
Deal found 21/2£397
Wed 15/421:25
LHR
-
MIA
1 stop29h 30m
Icelandair
Sun 26/418:15
MIA
-
LHR
1 stop12h 40m
Icelandair
Deal found 20/2£398
Wed 11/306:40
LHR
-
MIA
2 stops17h 33m
Multiple Airlines
Wed 18/311:38
MIA
-
LHR
2 stops27h 12m
Multiple Airlines
Deal found 18/2£399
Mon 13/415:40
LGW
-
MIA
1 stop35h 15m
Icelandair
Wed 29/418:15
MIA
-
LGW
1 stop15h 25m
Icelandair
Deal found 18/2£400

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 February 2026.

Round-trip from

£383

One-way from

£309

Popular in

December

Cheapest in

September

Average price

£464
Icelandair
  • Icelandair
  • 17/3-25/3
  • 2 total stops
  • 34h 55m total
  • London to Florida Keys
Search Deals
6/3
  • 6/3
  • 3 total stops
  • 57h 15m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 4% 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 February 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 February 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

LTN - MIA

LTNMIA

London Luton

Wed 18/3

06:50-20:20

2 stops17h 30m

Miami

Wed 25/3

18:15-20:00

2 stops21h 45m

£432

LondonMiami

LTN - MIA

LTNMIA

London Luton

Mon 13/4

07:05-20:00

1 stop17h 55m

Miami

Mon 27/4

21:45-18:05

1 stop15h 20m

£444

LondonMiami

LTN - MIA

LTNMIA

London Luton

Mon 13/4

07:05-20:00

1 stop17h 55m

Miami

Fri 17/4

21:45-18:05

1 stop15h 20m

£449

LondonMiami

SEN - MIA

SENMIA

London Southend

Wed 8/4

08:25-20:00

1 stop16h 35m

Miami

Fri 17/4

21:45-21:45

1 stop19h 00m

£453

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Sat 7/3

10:00-19:30

1 stop14h 30m

Miami

Tue 17/3

22:45-16:25

1 stop13h 40m

£464

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Fri 13/3

10:00-20:30

1 stop14h 30m

Miami

Tue 17/3

22:45-16:25

1 stop13h 40m

£464

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 10/3

10:00-20:30

1 stop14h 30m

Miami

Wed 18/3

22:45-16:25

1 stop13h 40m

£464

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Fri 6/3

10:00-19:30

1 stop14h 30m

Miami

Mon 16/3

22:45-16:25

1 stop13h 40m

£464

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Wed 4/3

10:00-19:30

1 stop14h 30m

Miami

Mon 9/3

22:45-16:25

1 stop13h 40m

£464

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 13/4

19:50-14:30

1 stop23h 40m

Miami

Fri 24/4

00:20-18:50

1 stop13h 30m

£467

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 60 results
1
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, September is the cheapest month in which you can book a flight from London to Florida Keys (average of £449). Flying from London to Florida Keys in June is currently the most expensive (average of £622). 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 February 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
1,457 reviews
Check prices

Overall

7.7

Food

7.3

Comfort

7.6

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.7
Good
1,457 reviews
KLM
7.7
Good
1,457 reviews
Check prices

Overall

7.7

Food

7.3

Comfort

7.6

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Finnair
7.6
Good
1,365 reviews
KLM
7.7
Good
1,457 reviews
Check prices

Overall

7.7

Food

7.3

Comfort

7.6

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Virgin Atlantic
7.5
Good
679 reviews
KLM
7.7
Good
1,457 reviews
Check prices

Overall

7.7

Food

7.3

Comfort

7.6

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Norse Atlantic UK
7.3
Good
KLM
7.7
Good
1,457 reviews
Check prices

Overall

7.7

Food

7.3

Comfort

7.6

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
British Airways
6.7
Okay
7,757 reviews
KLM
7.7
Good
1,457 reviews
Check prices

Overall

7.7

Food

7.3

Comfort

7.6

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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 50m. Fly via Air Europa, TAP AIR PORTUGAL, or United Airlines 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 £147. 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, September is the cheapest month in which you can book a flight from London to Florida Keys (average of £449). Flying from London to Florida Keys in June is currently the most expensive (average of £622). 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 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 February 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£448Average£539FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£490Average£785FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£514Average£553FlexibilityNo 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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