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Cheap flights from London Heathrow Airport to Florida Keys from £348

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 19/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — EYW
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap 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 16 January 2026.

Round-trip from

£385

One-way from

£348

Popular in

December

Cheapest in

September

Average price

£465
United Airlines
  • United Airlines
  • 1/3-8/3
  • 3 total stops
  • 53h 14m total
  • London to Florida Keys
Search Deals
19/2
  • 19/2
  • 3 total stops
  • 32h 04m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£16 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

Find 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 16 January 2026.

Sun 1/308:30
LHR
-
EYW
2 stops18h 39m
United Airlines
Sun 8/316:55
EYW
-
LHR
1 stop34h 35m
United Airlines
Deal found 15/1£385
Wed 4/213:25
LHR
-
MIA
1 stop14h 04m
Air Canada
Mon 23/208:00
MIA
-
LHR
1 stop18h 10m
Air Canada
Deal found 15/1£390
Wed 11/211:30
LHR
-
MIA
1 stop14h 00m
Delta
Mon 23/219:26
MIA
-
LHR
1 stop11h 14m
Delta
Deal found 14/1£391
Mon 13/411:30
LHR
-
MIA
1 stop13h 55m
British Airways
Mon 27/417:00
MIA
-
LHR
Nonstop8h 55m
British Airways
Deal found 15/1£392
Mon 13/407:25
LHR
-
MIA
2 stops17h 48m
Multiple Airlines
Fri 24/412:25
MIA
-
LHR
2 stops16h 35m
Multiple Airlines
Deal found 14/1£392
Fri 13/212:05
LHR
-
MIA
1 stop14h 54m
United Airlines
Fri 27/213:38
MIA
-
LHR
1 stop12h 02m
United Airlines
Deal found 15/1£393
Fri 13/212:05
LHR
-
MIA
1 stop35h 11m
United Airlines
Sat 21/206:15
MIA
-
LHR
1 stop23h 00m
United Airlines
Deal found 13/1£394
Wed 18/306:50
LHR
-
EYW
2 stops19h 29m
United Airlines
Wed 25/316:55
EYW
-
LHR
1 stop13h 20m
United Airlines
Deal found 14/1£394
Thu 26/211:10
LHR
-
MIA
1 stop14h 10m
Air Canada
Thu 5/312:25
MIA
-
LHR
1 stop13h 45m
Air Canada
Deal found 13/1£394
Tue 14/706:10
LHR
-
MIA
1 stop14h 55m
British Airways
Wed 5/821:05
MIA
-
LHR
1 stop17h 40m
British Airways
Deal found 13/1£395
Mon 26/111:15
LHR
-
MIA
Nonstop10h 10m
British Airways
Tue 3/222:50
MIA
-
LHR
Nonstop8h 30m
British Airways
Deal found 13/1£396
Mon 26/111:10
LHR
-
MIA
2 stops16h 19m
Air Canada
Mon 9/212:25
MIA
-
LHR
1 stop13h 45m
Air Canada
Deal found 13/1£397

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 16 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

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Sun 1/3

08:30-22:09

2 stops18h 39m

Key West

Sun 8/3

16:55-07:30

1 stop34h 35m

£385

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 10/3

08:55-18:40

1 stop13h 45m

Miami

Tue 7/4

17:40-10:15

1 stop11h 35m

£391

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 18/3

06:50-22:19

2 stops19h 29m

Key West

Wed 25/3

16:55-10:15

1 stop13h 20m

£394

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 11/5

06:15-15:55

1 stop14h 40m

Miami

Sun 24/5

21:45-07:40

1 stop28h 55m

£394

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 2/2

09:25-14:50

Nonstop10h 25m

Miami

Wed 11/2

21:25-11:10

Nonstop8h 45m

£399

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 9/2

14:45-20:10

Nonstop10h 25m

Miami

Thu 19/2

22:10-11:55

Nonstop8h 45m

£399

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 13/2

13:35-13:13

1 stop28h 38m

Miami

Fri 6/3

09:00-06:30

2 stops16h 30m

£400

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 14/4

12:15-23:22

2 stops16h 07m

Miami

Tue 5/5

09:16-06:55

2 stops16h 39m

£402

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 9/6

11:30-20:45

1 stop14h 15m

Miami

Thu 2/7

10:20-06:45

1 stop15h 25m

£403

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 24/3

08:55-18:54

1 stop13h 59m

Miami

Tue 31/3

18:25-08:05

Nonstop8h 40m

£403

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 31 results
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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Florida Keys (average of £436). Flying from London Heathrow Airport to Florida Keys in June is currently the most expensive (average of £625). 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 16 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
1,440 reviews
Check prices

Crew

8.4

Food

7.2

Boarding

7.8

Entertainment

7.1

Comfort

7.6

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
1,440 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Food

7.2

Boarding

7.8

Entertainment

7.1

Comfort

7.6

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
1,349 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Food

7.2

Boarding

7.8

Entertainment

7.1

Comfort

7.6

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
1,440 reviews
Check prices

Crew

8.4

Food

7.2

Boarding

7.8

Entertainment

7.1

Comfort

7.6

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
1,522 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Food

7.2

Boarding

7.8

Entertainment

7.1

Comfort

7.6

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
7,680 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Food

7.2

Boarding

7.8

Entertainment

7.1

Comfort

7.6

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 45m. Fly via United Airlines, Delta, or British Airways 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 £175. Scandinavian Airlines flights start at £176 while deals on A.P.G. start at £217 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Florida Keys (average of £436). Flying from London Heathrow Airport to Florida Keys in June is currently the most expensive (average of £625). 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 Heathrow 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 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 16 January 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£451Average£507FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£491Average£789FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£517Average£556FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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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.

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