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Cheap flights from London to Florida Keys from £276

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
9 Sep — 16 Sep1
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 August 2026.

Mon 21/920:55 -
1 stop22h 50m
Wed 7/1019:20 -
1 stop11h 45m
Deal found 9/8£464
Wed 16/916:45 -
2 stops26h 50m
Mon 28/916:20 -
2 stops16h 30m
Deal found 7/8£464
Thu 12/1117:20 -
2 stops33h 25m
Sat 21/1116:50 -
2 stops24h 25m
Deal found 9/8£465
Wed 9/919:20 -
1 stop30h 30m
Thu 24/921:35 -
1 stop19h 35m
Deal found 6/8£465
Tue 22/921:10 -
2 stops22h 55m
Sat 17/1015:30 -
2 stops17h 00m
Deal found 8/8£465
Tue 15/916:45 -
2 stops26h 50m
Tue 29/916:20 -
2 stops19h 25m
Deal found 9/8£465
Tue 15/913:40 -
2 stops29h 55m
Sun 4/1000:30 -
2 stops37h 35m
Deal found 9/8£466
Wed 21/1011:30 -
2 stops32h 05m
Tue 3/1116:50 -
2 stops18h 45m
Deal found 9/8£466
Sat 14/1107:55 -
2 stops17h 55m
Wed 25/1117:15 -
2 stops20h 20m
Deal found 5/8£467
Thu 17/915:25 -
1 stop33h 35m
Wed 30/922:00 -
1 stop33h 15m
Deal found 5/8£467
Wed 16/915:30 -
2 stops28h 05m
Wed 30/916:20 -
2 stops24h 10m
Deal found 9/8£468
Thu 12/1117:00 -
2 stops33h 45m
Sat 21/1116:50 -
2 stops19h 45m
Deal found 9/8£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 August 2026.

Round-trip from

£464

One-way from

£276

Popular in

August

Cheapest in

January

Average price

£631
Virgin Atlantic
  • Virgin Atlantic
  • 21/9-7/10
  • 2 total stops
  • 34h 35m total
  • London to Florida Keys
Search Deals
29/8
  • 29/8
  • 1 total stop
  • 26h 35m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£15 potential increase over avg. return price).
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 August 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 August 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

SEN London Southend - MIA Miami

SENMIA

London Southend

Thu 12/11

17:20-21:45

2 stops33h 25m

Miami

Sat 21/11

16:50-22:15

2 stops24h 25m

£465

LondonMiami

LGW London Gatwick - MIA Miami

LGWMIA

London Gatwick

Thu 17/9

20:35-20:00

1 stop28h 25m

Miami

Mon 21/9

22:00-10:15

1 stop31h 15m

£468

LondonMiami

LGW London Gatwick - MIA Miami

LGWMIA

London Gatwick

Mon 21/9

06:50-20:00

1 stop18h 10m

Miami

Wed 7/10

22:00-12:40

1 stop33h 40m

£473

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Mon 31/8

09:55-20:00

1 stop15h 05m

Miami

Mon 21/9

22:00-09:10

1 stop30h 10m

£477

LondonMiami

LGW London Gatwick - MIA Miami

LGWMIA

London Gatwick

Sun 6/9

21:45-20:00

1 stop27h 15m

Miami

Mon 28/9

22:00-11:25

1 stop32h 25m

£486

LondonMiami

LTN London Luton - MIA Miami

LTNMIA

London Luton

Tue 8/9

06:15-22:17

2 stops21h 02m

Miami

Mon 21/9

13:10-17:20

3 stops23h 10m

£496
Fastest return journey

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Mon 21/9

10:55-15:50

Nonstop9h 55m

Miami

Wed 7/10

18:05-08:05

Nonstop9h 00m

£508

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Sat 26/9

17:15-17:25

1 stop29h 10m

Miami

Sat 3/10

19:40-16:25

1 stop15h 45m

£513

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Wed 2/9

08:40-17:25

1 stop13h 45m

Miami

Wed 9/9

11:26-07:15

1 stop14h 49m

£513

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Fri 4/12

13:45-17:30

1 stop32h 45m

Miami

Mon 21/12

08:53-09:10

2 stops19h 17m

£514

Flights are sorted by cheapest return flights first.

Deals found on 5/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from London to Florida Keys (average of £489). Flying from London to Florida Keys in August is currently the most expensive (average of £633). 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 77 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 August 2026.
Read reviews from past customers who have flown with Finnair,Virgin Atlantic, andAmerican Airlines 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
1,428 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.7

Crew

8.2

Overall

7.7

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
7.7
Good
1,428 reviews
Finnair
7.7
Good
1,428 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.7

Crew

8.2

Overall

7.7

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
694 reviews
Finnair
7.7
Good
1,428 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.7

Crew

8.2

Overall

7.7

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
11,899 reviews
Finnair
7.7
Good
1,428 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.7

Crew

8.2

Overall

7.7

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.
Iberia
7.0
Good
3,261 reviews
Finnair
7.7
Good
1,428 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.7

Crew

8.2

Overall

7.7

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
8,153 reviews
Finnair
7.7
Good
1,428 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.7

Crew

8.2

Overall

7.7

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 9h 55m. Fly via LEVEL, Delta, or SWISS 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 £177. 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, February is the cheapest month in which you can book a flight from London to Florida Keys (average of £489). Flying from London to Florida Keys in August is currently the most expensive (average of £633). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from London to Florida Keys

Discover the top 2 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 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£468Average£566FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£468Average£708FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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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