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 10h 25m. 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 Aer Lingus, which is currently one of the cheapest options available, starting at £292. Lufthansa flights start at £302 while deals on TAP AIR PORTUGAL start at £305 one-way.

In terms of precipitation, rainfall in Florida Keys ranges from 41.0 - 252.0 inches per month. September is typically the wettest month, when rainfall can reach 252.0 mm. January is typically the driest time to visit Florida Keys when rainfall is around 41.0 mm.

If weather is an important factor for your trip to Florida Keys, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 20.0 C).

What are the most popular airlines that fly from London Heathrow Airport to Florida Keys?

When booking a flight from London Heathrow Airport to Florida Keys, you may want to consider flying on Virgin Atlantic, British Airways or Iberia as they are the most popular for this route.

What is the cheapest time of day to fly from LHR to EOA?

When flying from London Heathrow Airport to Florida Keys, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

£356+ Cheap Flights from London Heathrow Airport to Florida Keys

Cheap flight deals from Heathrow to Florida Keys

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 17 September 2026.

Thu 5/1112:15 -

1 stop13h 35m

Wed 11/1117:15 -

1 stop21h 15m

Deal found 14/9£356

Sun 29/1106:00 -

1 stop13h 35m

Thu 10/1216:40 -

1 stop21h 35m

Deal found 14/9£415

Thu 19/1109:00 -

1 stop13h 30m

Mon 30/1116:40 -

1 stop18h 40m

Deal found 12/9£423

Sat 19/906:50 -

2 stops17h 02m

Sat 26/913:26 -

1 stop12h 29m

Deal found 12/9£434

Thu 19/1106:30 -

1 stop13h 45m

Mon 30/1122:50 -

Nonstop8h 45m

Deal found 12/9£434

Thu 5/1107:30 -

2 stops17h 11m

Wed 11/1116:40 -

1 stop15h 10m

Deal found 14/9£437

Sat 19/906:30 -

1 stop13h 15m

Sat 26/912:21 -

1 stop12h 59m

Deal found 12/9£439

Thu 19/1109:00 -

2 stops20h 24m

Mon 30/1108:00 -

2 stops17h 30m

Deal found 12/9£447

Sun 22/1107:40 -

1 stop14h 15m

Sat 28/1108:00 -

1 stop18h 10m

Deal found 13/9£449

Thu 19/1109:45 -

Nonstop9h 55m

Mon 30/1122:00 -

Nonstop8h 30m

Deal found 12/9£450

Sat 31/1009:40 -

Nonstop10h 20m

Fri 6/1114:15 -

1 stop12h 35m

Deal found 16/9£451

Thu 24/910:55 -

Nonstop9h 55m

Wed 7/1018:05 -

Nonstop9h 00m

Deal found 17/9£451

Best flights from Heathrow to Florida Keys
Discover carefully curated flight deals from Heathrow to Florida Keys that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Mon 19/1009:30 -

2 stops19h 55m

Sun 1/1117:28 -

2 stops37h 32m

Deal found 16/9£454

Wed 21/1013:10 -

1 stop13h 34m

Fri 6/1117:10 -

Nonstop8h 35m

Deal found 15/9£456

Sat 6/215:35 -

Nonstop10h 25m

Sat 20/206:00 -

1 stop20h 50m

Deal found 15/9£458

Sat 31/1018:40 -

1 stop24h 55m

Sun 8/1119:50 -

2 stops17h 50m

Deal found 16/9£487

Mon 19/1009:30 -

2 stops19h 55m

Sat 7/1112:17 -

2 stops15h 53m

Deal found 15/9£456

Fri 1/109:40 -

1 stop14h 50m

Sat 9/111:20 -

2 stops14h 30m

Deal found 13/9£466

Wed 4/1109:45 -

Nonstop9h 55m

Sun 22/1119:10 -

1 stop11h 50m

Deal found 13/9£469

Sun 31/107:30 -

2 stops17h 09m

Thu 11/210:20 -

2 stops15h 50m

Deal found 16/9£462

Mon 30/1115:35 -

Nonstop10h 25m

Tue 1/1222:50 -

Nonstop8h 45m

Deal found 16/9£481

Thu 28/109:00 -

1 stop13h 30m

Sat 6/213:00 -

1 stop12h 20m

Deal found 16/9£471

Wed 18/1114:30 -

Nonstop10h 00m

Sun 22/1117:50 -

1 stop12h 25m

Deal found 12/9£563

Thu 29/1012:45 -

1 stop29h 09m

Thu 5/1114:50 -

2 stops39h 25m

Deal found 14/9£496

Fri 9/1018:00 -

1 stop24h 29m

Sat 24/1016:20 -

1 stop15h 40m

Deal found 12/9£496

Fri 5/310:25 -

1 stop29h 46m

Tue 9/317:56 -

1 stop34h 14m

Deal found 16/9£501

Fri 9/1006:55 -

2 stops15h 30m

Mon 12/1019:40 -

2 stops16h 25m

Deal found 12/9£542

Fri 30/1016:20 -

2 stops25h 34m

Fri 6/1116:10 -

2 stops24h 10m

Deal found 14/9£578

Find flight deals from Heathrow to Florida Keys

Round-trip from	£356
Popular in	August
Cheapest in	January
Average price	£520

Icelandair
5/11-11/11
2 total stops
34h 50m total
London to Florida Keys

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (£20 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 September 2026

Search Deals

Cheapflights Fare Finder

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 London Heathrow - MIA Miami

LHRMIA

London Heathrow

Sat 12/12

06:05-22:24

2 stops21h 19m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£369

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Sun 13/12

06:05-22:24

2 stops21h 19m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£369

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Mon 14/12

06:05-00:45

2 stops23h 40m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£369

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Sat 13/2

07:40-16:36

1 stop13h 56m

Key West

Wed 31/12

00:00-06:00

Nonstop0h 00m

£372

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Sat 31/10

07:30-22:26

2 stops18h 56m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£380

Fastest return journey

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Thu 10/12

14:30-19:30

Nonstop10h 00m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£382

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Mon 4/1

19:30-14:35

2 stops24h 05m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£387

LondonKey West

LHR London Heathrow - EYW Key West

LHREYW

London Heathrow

Sun 28/2

18:45-19:24

2 stops29h 39m

Key West

Wed 31/12

00:00-06:00

Nonstop0h 00m

£391

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Wed 30/12

09:30-11:57

2 stops31h 27m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£404

LondonMiami

LHR London Heathrow - MIA Miami

LHRMIA

London Heathrow

Thu 3/12

12:05-17:00

3 stops33h 55m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£405

Flights are sorted by cheapest return flights first.

Deals found on 12/9

Showing 1-10 of 37 resultsSorted by cheapest first

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.

LHR-MIA

LHR-EYW

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

LHR-zzEOA

LHR-MIA

LHR-EYW

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 £506). Flying from London Heathrow Airport to Florida Keys in August is currently the most expensive (average of £655). 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 Heathrow Airport to Florida Keys?

The best time to book flights from London Heathrow Airport to Florida Keys is 70 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

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

1,578 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

KLM

7.8

Good

1,578 reviews

KLM

7.8

Good

1,578 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Virgin Atlantic

7.4

Good

694 reviews

KLM

7.8

Good

1,578 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

American Airlines

7.1

Good

12,075 reviews

KLM

7.8

Good

1,578 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Iberia

7.0

Good

3,249 reviews

KLM

7.8

Good

1,578 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

British Airways

6.7

Okay

8,228 reviews

KLM

7.8

Good

1,578 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Related info for your journey

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 10h 25m. 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 Aer Lingus, which is currently one of the cheapest options available, starting at £292. Lufthansa flights start at £302 while deals on TAP AIR PORTUGAL start at £305 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 £506). Flying from London Heathrow Airport to Florida Keys in August is currently the most expensive (average of £655). 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

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Alternative routes for Heathrow to Florida Keys

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Top 2 airlines flying from Heathrow to Florida Keys

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£439	Average£663	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£489	Average£715	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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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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Cheap flights from London Heathrow Airport to Florida Keys from £356

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Florida Keys

Cheapest flights from Heathrow to Florida KeysExplore 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 17 September 2026.

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 17 September 2026.

Best flights from Heathrow to Florida KeysDiscover carefully curated flight deals from Heathrow to Florida Keys that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Discover carefully curated flight deals from Heathrow to Florida Keys that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Direct flights from Heathrow to Florida KeysExplore direct flight options from Heathrow to Florida Keys based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2026.

Explore direct flight options from Heathrow to Florida Keys based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2026.

Last-minute flights from Heathrow to Florida KeysDiscover last-minute flight deals from Heathrow to Florida Keys. Data last updated 17 September 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Florida Keys. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Heathrow to Florida KeysSearch for one-way flight options from Heathrow to Florida Keys. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Search for one-way flight options from Heathrow to Florida Keys. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Find flight deals from Heathrow to Florida Keys

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Florida Keys that are best for you.

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.

Cheapflights Insights

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

How far ahead should I book a flight from London Heathrow Airport to Florida Keys?

The best time to book flights from London Heathrow Airport to Florida Keys is 70 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

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.

Related info for your journey

How long is the flight from London Heathrow Airport to Florida Keys?

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

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

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

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

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

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.

Complete your trip

Complete your trip to Florida Keys by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

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Search flights from Heathrow to Florida Keys by cabin class

Find flights from Heathrow to Florida Keys, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Heathrow and Florida Keys flights

Browse other Heathrow and Florida Keys flight options. Last updated on 17 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top 2 airlines flying from Heathrow to Florida Keys

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How does Cheapflights help users find flights from Heathrow to Florida Keys?

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

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

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

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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 17 September 2026.

Best flights from Heathrow to Florida Keys
Discover carefully curated flight deals from Heathrow to Florida Keys that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Direct flights from Heathrow to Florida Keys
Explore direct flight options from Heathrow to Florida Keys based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2026.

Last-minute flights from Heathrow to Florida Keys
Discover last-minute flight deals from Heathrow to Florida Keys. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Heathrow to Florida Keys
Search for one-way flight options from Heathrow to Florida Keys. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.