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Cheap flights from London to Florida Keys from £360

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 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
27 Jan — 3 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 28 December 2025.

Wed 31/1211:15LHR - MIA
Nonstop10h 00mBritish Airways
Thu 8/116:44MIA - LHR
1 stop11h 36mBritish Airways
Deal found 27/12£578
Tue 30/1213:50LHR - MIA
1 stop13h 25mBritish Airways
Tue 3/314:07MIA - LHR
1 stop11h 13mBritish Airways
Deal found 27/12£579
Tue 30/1213:50LHR - MIA
1 stop13h 25mBritish Airways
Fri 27/216:23MIA - LHR
1 stop11h 17mBritish Airways
Deal found 27/12£580
Wed 31/1213:50LHR - MIA
1 stop13h 29mBritish Airways
Wed 14/122:50MIA - LHR
Nonstop8h 30mBritish Airways
Deal found 26/12£580
Tue 30/1206:00LHR - MIA
1 stop14h 35mBritish Airways
Sat 17/118:00MIA - LHR
1 stop10h 40mBritish Airways
Deal found 26/12£583
Tue 30/1206:00LHR - MIA
1 stop14h 35mBritish Airways
Fri 9/118:00MIA - LHR
1 stop10h 40mBritish Airways
Deal found 27/12£583
Mon 29/1212:30LHR - MIA
1 stop13h 27mVirgin Atlantic
Thu 8/116:32MIA - LHR
1 stop11h 28mVirgin Atlantic
Deal found 26/12£586
Wed 31/1214:30LHR - MIA
Nonstop10h 00mAmerican Airlines
Sat 17/122:50MIA - LHR
Nonstop8h 30mAmerican Airlines
Deal found 26/12£598
Tue 30/1211:15LHR - MIA
Nonstop10h 00mBritish Airways
Thu 8/116:44MIA - LHR
1 stop11h 36mBritish Airways
Deal found 26/12£599
Wed 31/1213:50LHR - MIA
1 stop13h 29mBritish Airways
Sat 17/116:03MIA - LHR
1 stop12h 12mBritish Airways
Deal found 26/12£603
Wed 31/1212:30LGW - MIA
1 stop32h 05mBritish Airways
Sat 10/121:44MIA - LGW
1 stop28h 46mBritish Airways
Deal found 27/12£608
Wed 31/1212:30LGW - MIA
1 stop32h 05mBritish Airways
Sun 11/114:39MIA - LGW
2 stops23h 21mBritish Airways
Deal found 27/12£618

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 28 December 2025.

Round-trip from

£406

One-way from

£360

Popular in

December

Cheapest in

September

Average price

£635
United Airlines
  • United Airlines
  • 13/1-27/1
  • 2 total stops
  • 45h 02m total
  • London to Florida Keys
Search Deals
SWISS
  • SWISS
  • 15/2
  • 1 total stop
  • 24h 20m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 28 December 2025.
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

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 13/1

12:50-16:22

2 stops32h 32m

Key West

Tue 27/1

14:25-10:50

2 stops15h 25m

£406

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 6/2

16:20-16:22

1 stop29h 02m

Key West

Mon 9/2

16:15-06:20

2 stops33h 05m

£424

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 22/1

16:20-16:22

1 stop29h 02m

Key West

Sun 25/1

18:05-10:50

1 stop11h 45m

£424

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 21/1

12:05-16:22

1 stop33h 17m

Key West

Sun 25/1

18:05-10:50

1 stop11h 45m

£424

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Sat 14/3

11:55-21:55

1 stop14h 00m

Miami

Fri 17/4

18:15-14:40

1 stop15h 25m

£430

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 7/1

15:50-09:25

1 stop22h 35m

Miami

Fri 16/1

21:25-11:10

Nonstop8h 45m

£431

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 7/1

15:50-09:25

1 stop22h 35m

Miami

Sun 18/1

17:10-07:00

Nonstop8h 50m

£431

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 16/1

13:35-11:26

1 stop26h 51m

Key West

Mon 26/1

18:05-10:50

1 stop11h 45m

£431

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 16/1

10:10-18:54

1 stop13h 44m

Miami

Tue 27/1

17:10-07:00

Nonstop8h 50m

£432

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Fri 16/1

11:45-20:45

1 stop14h 00m

Miami

Thu 29/1

17:20-10:50

1 stop12h 30m

£435

Flights are sorted by cheapest return flights first.

Deals found on 27/12

Showing 1-10 of 60 results
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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, March is the cheapest month in which you can book a flight from London to Florida Keys (average of £436). Flying from London to Florida Keys in July is currently the most expensive (average of £623). 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 28 December 2025.
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
1,435 reviews
Check prices

Crew

8.4

Food

7.2

Overall

7.7

Boarding

7.7

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,435 reviews
KLM
7.7
Good
1,435 reviews
Check prices

Crew

8.4

Food

7.2

Overall

7.7

Boarding

7.7

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Finnair
7.6
Good
1,339 reviews
KLM
7.7
Good
1,435 reviews
Check prices

Crew

8.4

Food

7.2

Overall

7.7

Boarding

7.7

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Virgin Atlantic
7.5
Good
677 reviews
KLM
7.7
Good
1,435 reviews
Check prices

Crew

8.4

Food

7.2

Overall

7.7

Boarding

7.7

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Norse Atlantic UK
7.2
Good
KLM
7.7
Good
1,435 reviews
Check prices

Crew

8.4

Food

7.2

Overall

7.7

Boarding

7.7

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,617 reviews
KLM
7.7
Good
1,435 reviews
Check prices

Crew

8.4

Food

7.2

Overall

7.7

Boarding

7.7

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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 14h. Fly via United Airlines, Icelandair, or Delta to get the fastest option. Airlines will cover a distance of 4430 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 Scandinavian Airlines and A.P.G., 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, March is the cheapest month in which you can book a flight from London to Florida Keys (average of £436). Flying from London to Florida Keys in July is currently the most expensive (average of £623). 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 28 December 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£448Average£503FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£489Average£785FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£513Average£552FlexibilityNo 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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