Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Florida Keys from £328

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 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — EYW
19 May — 26 May1
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 19 April 2026.

Wed 27/509:55
LHR
-
MIA
Nonstop9h 35m
American Airlines
Thu 4/613:49
MIA
-
LHR
1 stop15h 26m
American Airlines
Deal found 17/4£501
Mon 25/509:55
LHR
-
MIA
Nonstop9h 35m
American Airlines
Thu 4/613:49
MIA
-
LHR
1 stop15h 26m
American Airlines
Deal found 17/4£501
Tue 13/1012:15
LHR
-
MIA
Nonstop9h 50m
British Airways
Tue 3/1122:20
MIA
-
LHR
Nonstop8h 45m
British Airways
Deal found 14/4£502
Sun 3/506:30
LHR
-
MIA
1 stop13h 15m
Virgin Atlantic
Tue 19/518:05
MIA
-
LHR
Nonstop9h 00m
Virgin Atlantic
Deal found 13/4£503
Wed 1/709:55
LHR
-
MIA
Nonstop9h 35m
British Airways
Wed 12/819:35
MIA
-
LHR
Nonstop8h 50m
British Airways
Deal found 16/4£504
Thu 7/506:30
LHR
-
MIA
1 stop13h 15m
Virgin Atlantic
Tue 19/518:05
MIA
-
LHR
Nonstop9h 00m
Virgin Atlantic
Deal found 16/4£504
Wed 1/711:30
LHR
-
MIA
1 stop14h 15m
Virgin Atlantic
Sun 12/711:24
MIA
-
LHR
1 stop13h 56m
Virgin Atlantic
Deal found 15/4£505
Tue 21/406:30
LHR
-
MIA
1 stop13h 15m
Virgin Atlantic
Mon 27/422:35
MIA
-
LHR
Nonstop9h 00m
Virgin Atlantic
Deal found 14/4£506
Tue 21/718:05
LHR
-
MIA
1 stop35h 16m
Finnair
Tue 4/818:33
MIA
-
LHR
1 stop22h 07m
Finnair
Deal found 14/4£507
Wed 15/711:45
LHR
-
MIA
2 stops16h 52m
Virgin Atlantic
Mon 20/722:35
MIA
-
LHR
Nonstop9h 00m
Virgin Atlantic
Deal found 15/4£507
Sat 16/506:30
LHR
-
MIA
1 stop13h 15m
Virgin Atlantic
Fri 22/519:30
MIA
-
LHR
1 stop14h 05m
Virgin Atlantic
Deal found 15/4£508
Wed 15/411:30
LHR
-
MIA
1 stop13h 55m
Iberia
Mon 20/419:05
MIA
-
LHR
Nonstop8h 55m
Iberia
Deal found 14/4£509

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 19 April 2026.

Round-trip from

£501

One-way from

£328

Popular in

December

Cheapest in

September

Average price

£526
American Airlines
  • American Airlines
  • 27/5-4/6
  • 1 total stop
  • 25h 01m total
  • London to Florida Keys
Search Deals
Avianca
  • Avianca
  • 23/4
  • 1 total stop
  • 19h 20m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£5 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 19 April 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Florida Keys that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 9/6

06:30-14:45

1 stop13h 15m

Miami

Thu 2/7

22:35-12:35

Nonstop9h 00m

£528

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 29/4

11:30-20:25

1 stop13h 55m

Miami

Tue 5/5

14:24-07:20

1 stop11h 56m

£528

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Thu 14/5

06:30-14:45

1 stop13h 15m

Miami

Tue 26/5

12:40-07:10

1 stop13h 30m

£535
Fastest return journey

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 5/6

16:00-20:55

Nonstop9h 55m

Miami

Sun 21/6

18:05-08:05

Nonstop9h 00m

£542

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sun 17/5

15:50-20:45

Nonstop9h 55m

Miami

Tue 9/6

18:05-08:05

Nonstop9h 00m

£543

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 10/10

10:55-15:50

Nonstop9h 55m

Miami

Sun 18/10

19:30-13:15

1 stop12h 45m

£546

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Thu 7/5

06:30-14:45

1 stop13h 15m

Miami

Mon 11/5

22:35-12:35

Nonstop9h 00m

£549

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sun 17/5

19:10-15:25

1 stop25h 15m

Miami

Tue 9/6

08:31-06:40

1 stop17h 09m

£549

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 30/5

15:50-20:45

Nonstop9h 55m

Miami

Sat 13/6

20:29-13:15

1 stop11h 46m

£562

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 10/10

10:55-15:50

Nonstop9h 55m

Miami

Sat 24/10

12:05-08:50

1 stop15h 45m

£566

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 33 resultsSorted by cheapest first
1
2
3
4

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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Florida Keys (average of £443). Flying from London Heathrow Airport to Florida Keys in June is currently the most expensive (average of £631). 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 19 April 2026.
Read reviews from past customers who have flown with KLM,Virgin Atlantic, andAmerican Airlines 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
7.8
Good
1,502 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

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
7.8
Good
1,502 reviews
KLM
7.8
Good
1,502 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

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
687 reviews
KLM
7.8
Good
1,502 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

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
American Airlines
7.1
Good
11,624 reviews
KLM
7.8
Good
1,502 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

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
Iberia
7.0
Good
3,182 reviews
KLM
7.8
Good
1,502 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

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
7,893 reviews
KLM
7.8
Good
1,502 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

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 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 9h 55m. Fly via Delta, British Airways, or Virgin Atlantic 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 TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at £248. Aer Lingus flights start at £290 while deals on Lufthansa start at £302 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Florida Keys (average of £443). Flying from London Heathrow Airport to Florida Keys in June is currently the most expensive (average of £631). 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 Orlando flights
Heathrow to Miami flights
Gatwick to Orlando flights
Stansted to Orlando flights
Gatwick to Miami flights
Stansted to Miami flights
London City to Orlando flights
London City to Miami flights
Luton to Miami flights
Heathrow to Tampa flights
Luton to Orlando flights
Heathrow to Fort Lauderdale flights
Gatwick to Fort Lauderdale flights
Gatwick to Tampa flights
Stansted to Tampa flights
London City to Tampa flights
Heathrow to West Palm Beach flights
Gatwick to West Palm Beach flights
Southend to Miami flights
Heathrow to Fort Myers flights
Luton to Tampa flights
Heathrow to Jacksonville flights
Heathrow to Melbourne flights
Luton to Fort Lauderdale flights
Gatwick to Fort Myers flights
Stansted to Fort Lauderdale flights
Gatwick to Jacksonville flights
Heathrow to Sarasota flights
London City to Fort Lauderdale flights
London City to Fort Myers flights
Heathrow to Pensacola flights
Gatwick to Pensacola flights
Gatwick to Melbourne flights
Heathrow to Daytona Beach flights
Stansted to Fort Myers flights
London City to Melbourne flights
London City to West Palm Beach flights
Heathrow to Panama City flights
Heathrow to Key West flights
Gatwick to Sarasota flights
London City to Jacksonville flights
London City to Pensacola flights
Southend to Orlando flights
Heathrow to Gainesville flights
London City to Sarasota flights
Gatwick to Panama City flights
Heathrow to Valparaiso flights
London City to Key West flights
London City to Panama City flights
Gatwick to Daytona Beach 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 19 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£460Average£537FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£490Average£742FlexibilityNo 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 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.