Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Florida Keys from £327

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — EYW
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Florida Keys

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Florida Keys
Explore the most affordable flight options available from Heathrow to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 January 2026.

Tue 10/206:50
LHR
-
MIA
2 stops15h 39m
Air Canada
Tue 17/208:00
MIA
-
LHR
2 stops17h 30m
Air Canada
Deal found 27/1£373
Mon 9/206:50
LHR
-
MIA
2 stops15h 39m
Air Canada
Tue 24/208:00
MIA
-
LHR
2 stops17h 30m
Air Canada
Deal found 27/1£373
Sat 7/313:45
LHR
-
MIA
1 stop29h 55m
Lufthansa
Sun 15/319:55
MIA
-
LHR
2 stops34h 55m
Lufthansa
Deal found 27/1£375
Thu 21/508:40
LHR
-
MIA
1 stop13h 45m
United Airlines
Sat 30/508:00
MIA
-
LHR
2 stops17h 55m
United Airlines
Deal found 27/1£376
Mon 9/211:25
LHR
-
MIA
1 stop14h 20m
British Airways
Tue 24/218:50
MIA
-
LHR
Nonstop8h 45m
British Airways
Deal found 27/1£376
Thu 5/206:50
LHR
-
MIA
2 stops18h 39m
United Airlines
Sun 15/210:58
MIA
-
LHR
1 stop15h 32m
United Airlines
Deal found 26/1£377
Wed 18/209:50
LHR
-
MIA
1 stop13h 10m
British Airways
Tue 3/322:00
MIA
-
LHR
Nonstop8h 30m
British Airways
Deal found 26/1£378
Wed 4/211:25
LHR
-
MIA
1 stop14h 20m
British Airways
Wed 11/222:50
MIA
-
LHR
Nonstop8h 30m
British Airways
Deal found 26/1£379
Sun 1/318:10
LHR
-
MIA
1 stop27h 40m
Finnair
Mon 9/323:20
MIA
-
LHR
Nonstop8h 45m
Finnair
Deal found 25/1£379
Mon 2/211:25
LHR
-
MIA
1 stop14h 20m
British Airways
Mon 16/217:10
MIA
-
LHR
Nonstop8h 40m
British Airways
Deal found 26/1£380
Thu 12/206:00
LHR
-
MIA
1 stop13h 40m
Multiple Airlines
Sun 22/207:25
MIA
-
LHR
1 stop18h 05m
Multiple Airlines
Deal found 27/1£381
Tue 24/211:30
LHR
-
EYW
2 stops33h 37m
United Airlines
Tue 3/318:35
EYW
-
LHR
1 stop31h 05m
United Airlines
Deal found 27/1£382

Find flight deals from Heathrow to Florida Keys

Keep the following information in mind while searching for Heathrow to Florida Keys flight deals. Data was last updated 28 January 2026.

Round-trip from

£373

One-way from

£327

Popular in

December

Cheapest in

September

Average price

£454
Air Canada
  • Air Canada
  • 10/2-17/2
  • 4 total stops
  • 33h 09m total
  • London to Florida Keys
Search Deals
11/2
  • 11/2
  • 2 total stops
  • 28h 15m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£14 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 January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 January 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Florida Keys that are best for you.

Fly from

Heathrow

Fly to

Florida Keys

Route

Depart

Return

Price

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Thu 21/5

08:40-17:25

1 stop13h 45m

Miami

Thu 28/5

10:20-05:55

1 stop14h 35m

£376

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 25/2

11:30-20:20

1 stop13h 50m

Miami

Wed 4/3

17:10-07:00

Nonstop8h 50m

£382

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 14/4

11:30-20:25

1 stop13h 55m

Miami

Tue 5/5

19:00-09:00

Nonstop9h 00m

£382

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 3/3

06:30-14:50

1 stop13h 20m

Miami

Wed 11/3

22:25-11:10

Nonstop8h 45m

£383

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 21/2

09:10-21:59

2 stops17h 49m

Miami

Sat 28/2

16:10-11:15

1 stop14h 05m

£386

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 16/2

07:55-17:29

1 stop14h 34m

Miami

Mon 23/2

18:35-10:50

1 stop11h 15m

£386

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 4/3

08:00-17:24

1 stop14h 24m

Miami

Mon 23/3

13:30-06:40

1 stop13h 10m

£386

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 14/2

13:35-10:55

2 stops26h 20m

Miami

Sat 21/2

08:45-07:30

1 stop17h 45m

£386

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 12/3

08:30-22:19

2 stops17h 49m

Key West

Thu 19/3

18:28-14:45

2 stops16h 17m

£387

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 2/6

06:30-14:45

1 stop13h 15m

Miami

Tue 9/6

22:35-12:35

Nonstop9h 00m

£389

Flights are sorted by cheapest return flights first.

Deals found on 27/1

Showing 1-10 of 25 results
1
2
3

Best time to book a flight from Heathrow to Florida Keys

Have a flexible travel schedule? Discover the best time to fly to Florida Keys from Heathrow 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 Heathrow Airport to Florida Keys

What is the cheapest month to book a flight from London Heathrow Airport to Florida Keys?

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Florida Keys (average of £429). Flying from London Heathrow Airport to Florida Keys in June is currently the most expensive (average of £610). 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 January 2026.
Read reviews from past customers who have flown with KLM, Finnair, andVirgin Atlantic from London Heathrow Airport 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
1,443 reviews
Check prices

Comfort

7.6

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,443 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Comfort

7.6

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Finnair
7.6
Good
1,356 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Comfort

7.6

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Comfort

7.6

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Air France
7.4
Good
1,528 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Comfort

7.6

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,704 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Comfort

7.6

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 Heathrow Airport to Florida Keys?

    There are many flights that can get you from London Heathrow Airport to Florida Keys in 13h 20m. Fly via United Airlines, British Airways, or Delta to get the fastest option. The distance between London Heathrow Airport and Florida Keys is about 4414 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from London Heathrow Airport to Florida Keys one-way?

    To fly one-way, consider booking your trip with Norse Atlantic UK, which is currently one of the cheapest options available, starting at £171. A.P.G. flights start at £212 while deals on TAP AIR PORTUGAL start at £246 one-way.

  • Can I find deals for flights from Heathrow to Florida Keys that include hotel bookings?

    Yes. In addition to deals on Heathrow to Florida Keys flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Florida Keys?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Florida Keys.

  • Can I find deals for business class flights from Heathrow to Florida Keys?

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Florida Keys?

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Florida Keys (average of £429). Flying from London Heathrow Airport to Florida Keys in June is currently the most expensive (average of £610). 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.

Alternative routes for Heathrow to Florida Keys

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Miami flights
Heathrow to Orlando flights
Gatwick to Orlando flights
Gatwick to Miami flights
London City to Miami flights
Heathrow to Tampa flights
Stansted to Miami flights
Luton to Miami flights
Stansted to Orlando flights
London City to Orlando flights
Heathrow to Fort Lauderdale flights
Gatwick to Tampa flights
Gatwick to Fort Lauderdale flights
London City to Tampa flights
Luton to Orlando flights
Heathrow to West Palm Beach flights
Stansted to Tampa flights
Heathrow to Fort Myers flights
Gatwick to West Palm Beach flights
Southend to Miami flights
London City to Fort Lauderdale flights
Gatwick to Fort Myers flights
Heathrow to Jacksonville flights
Heathrow to Key West flights
Luton to Fort Lauderdale flights
Heathrow to Melbourne flights
London City to Fort Myers flights
Heathrow to Pensacola flights
Gatwick to Jacksonville flights
Luton to Tampa flights
Heathrow to Daytona Beach flights
London City to West Palm Beach flights
London City to Jacksonville flights
Heathrow to Sarasota flights
Stansted to Fort Myers flights
Gatwick to Key West flights
Heathrow to Valparaiso flights
Stansted to Fort Lauderdale flights
Southend to Orlando flights
Heathrow to Panama City flights
London City to Pensacola flights
Gatwick to Pensacola flights
London City to Key West flights
Gatwick to Sarasota flights
London City to Valparaiso flights
London City to Melbourne flights
Heathrow to Gainesville flights
Gatwick to Tallahassee flights
Gatwick to Valparaiso flights
Gatwick to Melbourne flights

Top 3 airlines flying from Heathrow to Florida Keys

Discover the top 3 airlines that operate flights from Heathrow 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 January 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£440Average£495FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£481Average£771FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£505Average£543FlexibilityNo 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 Heathrow to Florida Keys?

When you search for this flight from Heathrow to Florida Keys, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Florida Keys?

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Florida Keys for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Heathrow to Florida Keys with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Florida Keys, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Heathrow to Florida Keys become cheaper?

Not ready to book yet? You can track prices for flights from Heathrow to Florida Keys on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.