£305+ Cheap Flights from Florida Keys to London Heathrow Airport | Cheapflights

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Cheap flight deals from Florida Keys to Heathrow

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Cheapest flights from Florida Keys to Heathrow
Explore the most affordable flight options available from Florida Keys to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 March 2026.

Mon 4/521:45

MIA

-

LHR

1 stop30h 25m

LEVEL

Thu 7/520:50

LHR

-

MIA

1 stop28h 10m

LEVEL

Deal found 24/3£494

Sun 11/1021:45

MIA

-

LHR

1 stop17h 20m

LEVEL

Wed 14/1009:55

LHR

-

MIA

1 stop15h 05m

LEVEL

Deal found 23/3£497

Thu 29/1020:55

MIA

-

LHR

1 stop20h 45m

Scandinavian Airlines

Sat 7/1106:40

LHR

-

MIA

2 stops40h 25m

Scandinavian Airlines

Deal found 21/3£500

Mon 4/521:45

MIA

-

LHR

1 stop30h 25m

LEVEL

Tue 19/520:50

LHR

-

MIA

1 stop28h 10m

LEVEL

Deal found 23/3£503

Sat 17/1007:00

MIA

-

LHR

2 stops29h 40m

Scandinavian Airlines

Sun 1/1106:40

LHR

-

MIA

2 stops40h 25m

Scandinavian Airlines

Deal found 21/3£505

Thu 5/1119:55

MIA

-

LHR

1 stop32h 25m

Scandinavian Airlines

Sat 14/1110:35

LHR

-

MIA

2 stops36h 30m

Scandinavian Airlines

Deal found 22/3£506

Sun 25/1020:55

MIA

-

LHR

2 stops15h 30m

Scandinavian Airlines

Thu 29/1019:50

LHR

-

MIA

2 stops27h 15m

Scandinavian Airlines

Deal found 22/3£507

Sun 26/421:45

MIA

-

LHR

1 stop17h 20m

Multiple Airlines

Tue 22/920:50

LHR

-

MIA

1 stop28h 10m

Multiple Airlines

Deal found 25/3£509

Fri 17/421:45

MIA

-

LHR

1 stop17h 20m

LEVEL

Sun 19/409:55

LHR

-

MIA

1 stop15h 05m

LEVEL

Deal found 25/3£510

Tue 8/913:22

EYW

-

LHR

1 stop12h 28m

Multiple Airlines

Thu 8/1009:55

LHR

-

EYW

1 stop13h 29m

Multiple Airlines

Deal found 24/3£632

Tue 8/919:09

EYW

-

LHR

1 stop30h 46m

British Airways

Thu 8/1019:30

LHR

-

EYW

2 stops27h 54m

British Airways

Deal found 24/3£650

Fri 4/1214:30

EYW

-

LHR

1 stop13h 40m

United Airlines

Tue 8/1213:25

LHR

-

EYW

2 stops28h 37m

United Airlines

Deal found 23/3£654

Best flights from Florida Keys to Heathrow
Discover carefully curated flight deals from Florida Keys to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 March 2026.

Wed 5/821:45

MIA

-

LHR

1 stop30h 25m

LEVEL

Thu 3/920:50

LHR

-

MIA

1 stop28h 10m

LEVEL

Deal found 22/3£583

Wed 8/412:14

MIA

-

LHR

1 stop12h 41m

United Airlines

Mon 20/412:10

LHR

-

MIA

1 stop31h 05m

United Airlines

Deal found 21/3£637

Sun 5/422:35

MIA

-

LHR

Nonstop9h 00m

Multiple Airlines

Thu 16/411:30

LHR

-

MIA

1 stop14h 15m

Multiple Airlines

Deal found 22/3£639

Tue 8/919:09

EYW

-

LHR

1 stop30h 46m

British Airways

Thu 8/1019:30

LHR

-

EYW

2 stops27h 54m

British Airways

Deal found 24/3£650

Mon 17/818:05

MIA

-

LHR

Nonstop9h 00m

KLM

Sun 30/815:50

LHR

-

MIA

Nonstop9h 55m

KLM

Deal found 21/3£730

Sun 5/417:10

MIA

-

LHR

1 stop12h 20m

Finnair

Tue 21/408:55

LHR

-

MIA

1 stop18h 01m

Finnair

Deal found 21/3£731

Wed 20/518:05

MIA

-

LHR

Nonstop9h 00m

Delta

Tue 26/506:30

LHR

-

MIA

1 stop13h 15m

Delta

Deal found 25/3£736

Mon 13/713:01

EYW

-

LHR

1 stop12h 54m

American Airlines

Wed 22/706:15

LHR

-

EYW

2 stops17h 51m

American Airlines

Deal found 26/3£828

Mon 21/921:45

MIA

-

LHR

1 stop30h 25m

LEVEL

Mon 28/909:55

LHR

-

MIA

1 stop15h 05m

LEVEL

Deal found 21/3£621

Wed 29/414:35

EYW

-

LHR

1 stop13h 45m

United Airlines

Thu 7/514:10

LHR

-

EYW

2 stops29h 57m

United Airlines

Deal found 22/3£665

Mon 27/415:58

EYW

-

LHR

1 stop15h 37m

Multiple Airlines

Tue 5/515:35

LHR

-

EYW

1 stop12h 23m

Multiple Airlines

Deal found 21/3£677

Mon 4/516:47

EYW

-

LHR

1 stop13h 48m

United Airlines

Tue 12/514:10

LHR

-

EYW

1 stop29h 57m

United Airlines

Deal found 22/3£681

Wed 8/715:15

MIA

-

LHR

1 stop12h 35m

Delta

Thu 30/708:55

LHR

-

MIA

1 stop13h 55m

Delta

Deal found 21/3£792

Thu 30/722:35

MIA

-

LHR

Nonstop9h 00m

KLM

Wed 5/810:55

LHR

-

MIA

Nonstop9h 55m

KLM

Deal found 21/3£810

Mon 4/516:47

EYW

-

LHR

1 stop13h 48m

United Airlines

Wed 13/516:40

LHR

-

EYW

2 stops27h 27m

United Airlines

Deal found 25/3£718

Thu 21/518:05

MIA

-

LHR

Nonstop9h 00m

Multiple Airlines

Mon 1/608:55

LHR

-

MIA

1 stop13h 55m

Multiple Airlines

Deal found 22/3£792

Mon 13/714:24

EYW

-

LHR

1 stop17h 51m

KLM

Wed 22/709:20

LHR

-

EYW

1 stop13h 03m

KLM

Deal found 24/3£949

Sun 30/811:28

MIA

-

LHR

2 stops17h 47m

United Airlines

Tue 1/908:45

LHR

-

MIA

1 stop13h 40m

United Airlines

Deal found 25/3£789

Thu 21/508:48

MIA

-

LHR

2 stops20h 12m

United Airlines

Mon 1/606:50

LHR

-

MIA

2 stops17h 36m

United Airlines

Deal found 24/3£801

Wed 17/614:26

EYW

-

LHR

1 stop11h 49m

United Airlines

Fri 17/716:40

LHR

-

EYW

2 stops27h 27m

United Airlines

Deal found 22/3£987

Tue 16/614:26

EYW

-

LHR

1 stop13h 54m

United Airlines

Fri 17/714:10

LHR

-

EYW

1 stop29h 57m

United Airlines

Deal found 22/3£990

Tue 16/614:26

EYW

-

LHR

1 stop13h 54m

United Airlines

Thu 16/714:10

LHR

-

EYW

1 stop29h 57m

United Airlines

Deal found 22/3£990

Mon 15/614:26

EYW

-

LHR

1 stop11h 49m

United Airlines

Mon 13/714:10

LHR

-

EYW

1 stop29h 57m

United Airlines

Deal found 24/3£1,043

Find flight deals from Florida Keys to Heathrow

Round-trip from	£494
One-way from	£305

LEVEL

LEVEL
4/5-7/5
2 total stops
58h 35m total
Florida Keys to London

1/5

1/5
3 total stops
41h 54m total
Florida Keys to London

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 5/8

21:45-09:10

1 stop30h 25m

London Heathrow

Thu 3/9

20:50-20:00

1 stop28h 10m

£583

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 21/9

21:45-09:10

1 stop30h 25m

London Heathrow

Mon 28/9

09:55-20:00

1 stop15h 05m

£621

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 8/4

12:14-05:55

1 stop12h 41m

London Heathrow

Mon 20/4

12:10-14:15

1 stop31h 05m

£637

MiamiLondon

MIA - LHR

MIALHR

Miami

Sun 5/4

22:35-12:35

Nonstop9h 00m

London Heathrow

Thu 16/4

11:30-20:45

1 stop14h 15m

£639

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 8/9

19:09-06:55

1 stop30h 46m

London Heathrow

Thu 8/10

19:30-18:24

2 stops27h 54m

£650

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 29/4

14:35-09:20

1 stop13h 45m

London Heathrow

Thu 7/5

14:10-15:07

2 stops29h 57m

£665

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 27/4

15:58-12:35

1 stop15h 37m

London Heathrow

Tue 5/5

15:35-22:58

1 stop12h 23m

£677

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 4/5

16:47-11:35

1 stop13h 48m

London Heathrow

Tue 12/5

14:10-15:07

1 stop29h 57m

£681

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 4/5

16:47-11:35

1 stop13h 48m

London Heathrow

Wed 13/5

16:40-15:07

2 stops27h 27m

£718

Fastest return journey

MiamiLondon

MIA - LHR

MIALHR

Miami

Mon 17/8

18:05-08:05

Nonstop9h 00m

London Heathrow

Sun 30/8

15:50-20:45

Nonstop9h 55m

£730

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 36 resultsSorted by cheapest first

1

2

3

4

Best time to book a flight from Florida Keys to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Florida Keys with our price prediction graph.

MIA-LHR

EYW-LHR

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 Florida Keys to London Heathrow Airport

zzEOA-LHR

MIA-LHR

EYW-LHR

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Florida Keys to London Heathrow Airport, such as KLM,Finnair, andVirgin Atlantic. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

7.8

Good

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

7.8

Good

7.8

Good

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

7.7

Good

7.8

Good

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

7.8

Good

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

7.8

Good

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

7.8

Good

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

How long is the flight from Florida Keys to London Heathrow Airport?
A quick flight from Florida Keys to London Heathrow Airport can take about 12h 41m. LEVEL provides one of the quickest options available for as low as £637. Florida Keys and London Heathrow Airport are separated by a distance of 4414 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Florida Keys to London Heathrow Airport one-way?
For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £122. Users have also found prices from £279 and £280 on Virgin Atlantic and Delta, respectively.
Can I find deals for flights from Florida Keys to Heathrow that include hotel bookings?
Yes. In addition to deals on Florida Keys to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Florida Keys to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Florida Keys to Heathrow.
Can I find deals for business class flights from Florida Keys to Heathrow?
Yes. Cheapflights offers flight deals from Florida Keys to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Florida Keys today with Cheapflights!

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

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

Yes, we can. To see specific flights from Florida Keys to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Of course! You can now track prices for flights from Florida Keys to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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