Which airlines fly to Florida Keys?

Virgin Atlantic, American Airlines and British Airways are the top three most popular airlines that fly to Florida Keys from London Heathrow Airport according to our data. Virgin Atlantic is the first choice among our users, with 55% of people opting to fly with this airline when travelling to Florida Keys. Keep in mind that there are 3 different airlines that fly to Florida Keys on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from London Heathrow to Florida Keys?

SWISS, United Airlines, and British Airways are the most popular carriers operating from London Heathrow to Florida Keys

How many operators does momondo search for flights from London Heathrow Airport to Florida Keys?

There are 18 operators available for flights from London Heathrow Airport to Florida Keys as of March 2026.

How old do you have to be to fly from London Heathrow Airport to Florida Keys?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Florida Keys.

What documentation or ID do you need to fly to Florida Keys?

The necessary travel and health documents for your Florida Keys trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£310 Cheap Flights from London Heathrow Airport to Florida Keys in 2026

Q: How many flights depart from London Heathrow Airport to Florida Keys on average per week?

The number of flights available between London Heathrow Airport and Florida Keys is 180 per week as of March 2026. The most frequent departure day is Fri, with 17% of weekly flights leaving on this day.

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Find the cheapest flights from London Heathrow Airport to Florida Keys

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

06:00 - 14:30

LHR

MIA

13h 30m

1 stop

00:30 - 22:00

MIA

LHR

16h 30m

1 stop

£389TAP AIR PORTUGAL

Thu, 30 Apr - Sun, 10 May

06:00 - 14:30

LHR

MIA

13h 30m

1 stop

03:50 - 22:00

MIA

LHR

13h 10m

1 stop

£390TAP AIR PORTUGAL

Tue, 28 Apr - Wed, 6 May

15:35 - 20:15

LHR

MIA

9h 40mdirect

22:40 - 12:35

MIA

LHR

8h 55mdirect

£394British Airways

Tue, 28 Apr - Wed, 6 May

15:35 - 20:15

LHR

MIA

9h 40mdirect

17:00 - 06:55

MIA

LHR

8h 55mdirect

£399British Airways

Tue, 28 Apr - Mon, 11 May

15:35 - 20:15

LHR

MIA

9h 40mdirect

17:00 - 06:55

MIA

LHR

8h 55mdirect

£400British Airways

Wed, 29 Apr - Thu, 7 May

09:55 - 14:30

LHR

MIA

9h 35mdirect

22:40 - 12:35

MIA

LHR

8h 55mdirect

£401British Airways

Tue, 5 May - Mon, 11 May

06:00 - 14:30

LHR

MIA

13h 30m

1 stop

16:30 - 12:45

MIA

LHR

15h 15m

1 stop

£402TAP AIR PORTUGAL

Sat, 2 May - Wed, 6 May

11:05 - 22:45

LHR

MIA

16h 40m

1 stop

14:20 - 07:15

MIA

LHR

11h 55m

1 stop

£403United Airlines

Tue, 28 Apr - Mon, 11 May

16:40 - 17:39

LHR

EYW

29h 59m

2 stops

18:22 - 20:40

EYW

LHR

21h 18m

2 stops

£540United Airlines

Wed, 22 Apr - Wed, 29 Apr

16:40 - 15:57

LHR

EYW

28h 17m

2 stops

14:49 - 10:40

EYW

LHR

14h 51m

2 stops

£570United Airlines

Thu, 23 Apr - Thu, 30 Apr

TAP AIR PORTUGAL flights from London Heathrow Airport to Florida Keys

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to Florida Keys flight tickets

TAP AIR PORTUGAL

30 Apr

LHR06:00London Heathrow

13h 30m

1 stop

MIA14:30Miami

8 May

MIA00:20Miami

16h 40m

1 stop

LHR22:00London Heathrow

£389

TAP AIR PORTUGAL

28 Apr

LHR06:00London Heathrow

13h 30m

1 stop

MIA14:30Miami

6 May

MIA03:50Miami

13h 10m

1 stop

LHR22:00London Heathrow

£390

TAP AIR PORTUGAL

2 May

LHR06:00London Heathrow

13h 30m

1 stop

MIA14:30Miami

6 May

MIA16:30Miami

15h 15m

1 stop

LHR12:45London Heathrow

£402

British Airways flights from London Heathrow Airport to Florida Keys

Our best British Airways deals on London Heathrow Airport to Florida Keys flight tickets

British Airways

28 Apr

LHR15:35London Heathrow

9h 40m

MIA20:15Miami

6 May

MIA22:40Miami

8h 55m

LHR12:35London Heathrow

£394

British Airways

28 Apr

LHR15:35London Heathrow

9h 40m

MIA20:15Miami

11 May

MIA17:00Miami

8h 55m

LHR06:55London Heathrow

£399

British Airways

29 Apr

LHR15:35London Heathrow

9h 40m

MIA20:15Miami

7 May

MIA17:00Miami

8h 55m

LHR06:55London Heathrow

£400

momondo 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 - MIA

LHRMIA

London Heathrow

Thu 30/4

06:00-14:30

1 stop13h 30m

Miami

Sun 10/5

00:30-22:00

1 stop16h 30m

£389

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 28/4

06:00-14:30

1 stop13h 30m

Miami

Wed 6/5

03:50-22:00

1 stop13h 10m

£390

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 28/4

15:35-20:15

Nonstop9h 40m

Miami

Wed 6/5

22:40-12:35

Nonstop8h 55m

£394

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 28/4

15:35-20:15

Nonstop9h 40m

Miami

Mon 11/5

17:00-06:55

Nonstop8h 55m

£399

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 29/4

15:35-20:15

Nonstop9h 40m

Miami

Thu 7/5

17:00-06:55

Nonstop8h 55m

£400

Fastest return journey

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 5/5

09:55-14:30

Nonstop9h 35m

Miami

Mon 11/5

22:40-12:35

Nonstop8h 55m

£401

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 2/5

06:00-14:30

1 stop13h 30m

Miami

Wed 6/5

16:30-12:45

1 stop15h 15m

£402

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 28/4

11:05-22:45

1 stop16h 40m

Miami

Mon 11/5

14:20-07:15

1 stop11h 55m

£403

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 22/4

16:40-17:39

2 stops29h 59m

Key West

Wed 29/4

18:22-20:40

2 stops21h 18m

£540

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 23/4

16:40-15:57

2 stops28h 17m

Key West

Thu 30/4

14:49-10:40

2 stops14h 51m

£570

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Florida Keys

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Florida Keys?

The cheapest month to fly to Florida Keys from London Heathrow Airport is in September. Flight prices, which tend to average around £459, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Florida Keys, with average flight prices from London Heathrow Airport averaging around £465.

What is the cheapest day to depart on your flight to Florida Keys?

The cheapest day to depart from London Heathrow Airport to Florida Keys is on a Wednesday. Travellers who choose to depart for Florida Keys on a Wednesday will often find tickets for as low as £563. On the other hand, Sunday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £656.

What is the cheapest time of day to depart on your flight to Florida Keys?

Our most recent data shows that the best time of day to fly to Florida Keys is at midday. Flights from London Heathrow Airport to Florida Keys during this time can be as low as £591. Flights in the morning are often more expensive, with an average ticket price of £612.

How far in advance should I book a flight to Florida Keys?

You are more likely to see cheaper flights to Florida Keys from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around £532 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from London Heathrow Airport for as low as £481 on momondo.

Can stopping save me money on London Heathrow Airport to Florida Keys flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Florida Keys.

Cheap London Heathrow Airport to Florida Keys flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Florida Keys

Fastest flight time	9h 30m
Direct flights	Every day
Airports in Florida Keys	3 airports

The fastest flight from London Heathrow Airport to Florida Keys takes 9h 30m

Direct flights go from London Heathrow Airport to Florida Keys every day.

There are 3 airports in Florida Keys. From London Heathrow Airport there are direct flights to Miami (MIA).

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When did momondo last update prices for flights from London Heathrow Airport to Florida Keys?
Prices for flights from London Heathrow Airport to Florida Keys are updated daily.
How many operators does momondo search for flights from London Heathrow Airport to Florida Keys?
There are 18 operators available for flights from London Heathrow Airport to Florida Keys as of March 2026.
How old do you have to be to fly from London Heathrow Airport to Florida Keys?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Florida Keys.
What documentation or ID do you need to fly to Florida Keys?
The necessary travel and health documents for your Florida Keys trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London Heathrow Airport to Florida Keys?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London Heathrow Airport to Florida Keys is Boeing 787-9 Dreamliner (19.97% of total bookings). The next most popular plane models are Airbus A350-1000 (19.40%), Boeing 777-300ER (10.68%), and Boeing 777 (9.47%).

Best airlines flying from London Heathrow Airport to Florida Keys

Compare and see reviews for airlines that fly from London Heathrow Airport to Florida Keys with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £464	Free Cancellation	Rating 6.7 7,784 reviews	Search British Airways flights
Virgin Atlantic	PriceFrom £494	Free Cancellation	Rating 7.5 680 reviews	Search Virgin Atlantic flights
American Airlines	PriceFrom £519	Free Cancellation	Rating 7.1 11,445 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Florida Keys?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Florida Keys. momondo saves you time and could save you money on your trip.

Can I find flights from London to Florida Keys with flexible booking policies on momondo?

Yes. All flights to Florida Keys from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Florida Keys?

Once all potential London to Florida Keys flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Florida Keys right now. Can momondo alert me if prices change?

Price alerts on flights to Florida Keys from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.