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Cheap flights from London Heathrow Airport to Florida Keys from £362

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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — EYW
10 1月 — 17 1月1
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 11 12月 2025.

週四 11/1218:30LHR - MIA
1 stop25h 20mTAP AIR PORTUGAL
週三 14/123:35MIA - LHR
1 stop14h 20mTAP AIR PORTUGAL
Deal found 9/12£464
週二 23/1218:40LHR - MIA
1 stop25h 00mSWISS
週一 26/119:50MIA - LHR
1 stop15h 30mSWISS
Deal found 9/12£489
週四 11/1208:15LHR - MIA
1 stop35h 35mTAP AIR PORTUGAL
週五 16/123:35MIA - LHR
1 stop14h 20mTAP AIR PORTUGAL
Deal found 9/12£498
週二 23/1218:30LHR - MIA
1 stop25h 20mTAP AIR PORTUGAL
週一 26/116:35MIA - LHR
1 stop24h 00mTAP AIR PORTUGAL
Deal found 10/12£514
週四 25/1211:25LHR - MIA
1 stop14h 20mIberia
週五 9/116:44MIA - LHR
1 stop11h 36mIberia
Deal found 9/12£518
週一 15/1217:00LHR - MIA
2 stops23h 49mFinnair
週一 26/122:30MIA - LHR
1 stop13h 45mFinnair
Deal found 8/12£524
週四 25/1211:25LHR - MIA
1 stop14h 20mIberia
週一 26/114:39MIA - LHR
1 stop12h 11mIberia
Deal found 9/12£525
週四 25/1211:25LHR - MIA
1 stop14h 20mIberia
週四 8/116:44MIA - LHR
1 stop11h 36mIberia
Deal found 10/12£526
週四 11/1209:15LHR - MIA
1 stop16h 30mBritish Airways
週一 12/109:20MIA - LHR
1 stop16h 15mBritish Airways
Deal found 10/12£527
週四 11/1209:15LHR - MIA
1 stop16h 30mBritish Airways
週五 16/118:30MIA - LHR
Nonstop8h 45mBritish Airways
Deal found 9/12£527
週一 15/1213:30LHR - MIA
1 stop13h 33mBritish Airways
週一 26/117:10MIA - LHR
Nonstop8h 40mBritish Airways
Deal found 8/12£528
週六 27/1210:45LHR - EYW
1 stop15h 13mKLM
週三 31/1207:25EYW - LHR
2 stops19h 15mKLM
Deal found 10/12£843

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 11 12月 2025.

Round-trip from

£451

One-way from

£362

Popular in

December

Cheapest in

September

Average price

£634
Scandinavian Airlines
  • Scandinavian Airlines
  • 15/1-22/1
  • 3 total stops
  • 28h 25m total
  • London to Florida Keys
Search Deals
6/6
  • 6/6
  • 2 total stops
  • 27h 55m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£19 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 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 11 12月 2025.
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

週日 11/1

20:05-14:40

1 stop23h 35m

Miami

週一 26/1

19:50-13:00

1 stop12h 10m

£452

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

週一 2/3

06:30-20:35

2 stops19h 05m

Miami

週四 12/3

09:00-05:55

1 stop16h 55m

£473

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

週二 10/3

09:30-23:06

2 stops17h 36m

Miami

週二 31/3

09:50-06:55

2 stops16h 05m

£473

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

週二 27/1

10:45-20:45

1 stop15h 00m

Miami

週五 13/2

14:55-07:50

1 stop11h 55m

£476

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

週六 24/1

11:25-20:45

1 stop14h 20m

Miami

週六 31/1

14:39-07:50

1 stop12h 11m

£476

LondonKey West

LHR - EYW

LHREYW

London Heathrow

週三 8/4

10:55-19:41

1 stop13h 46m

Key West

週一 13/4

18:00-13:30

1 stop14h 30m

£481

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

週四 8/1

13:30-22:10

1 stop13h 40m

Miami

週四 15/1

14:39-06:35

1 stop10h 56m

£481

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

週三 6/5

08:45-17:30

1 stop13h 45m

Miami

週三 13/5

07:01-10:00

2 stops21h 59m

£482

LondonKey West

LHR - EYW

LHREYW

London Heathrow

週日 25/1

13:35-23:56

2 stops39h 21m

Key West

週日 1/2

19:45-08:35

1 stop31h 50m

£486

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

週日 11/1

16:15-16:50

1 stop29h 35m

Miami

週一 26/1

17:10-06:50

Nonstop8h 40m

£488

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 29 results
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2
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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 £442). Flying from London Heathrow Airport to Florida Keys in July is currently the most expensive (average of £632). 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 11 12月 2025.
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
1,432 reviews
Check prices

Food

7.2

Boarding

7.8

Crew

8.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

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
1,432 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Food

7.2

Boarding

7.8

Crew

8.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

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
1,334 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Food

7.2

Boarding

7.8

Crew

8.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

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
675 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Food

7.2

Boarding

7.8

Crew

8.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
TAP AIR PORTUGAL
7.1
Good
2,086 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Food

7.2

Boarding

7.8

Crew

8.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

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
7,573 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Food

7.2

Boarding

7.8

Crew

8.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

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 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 15h. Fly via SWISS, United Airlines, 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 Scandinavian Airlines, which is currently one of the cheapest options available, starting at £177. Norse Atlantic UK flights start at £185 while deals on A.P.G. start at £219 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 £442). Flying from London Heathrow Airport to Florida Keys in July is currently the most expensive (average of £632). 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 11 12月 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£454Average£545FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£495Average£795FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£520Average£560FlexibilityNo 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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