Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to Florida Keys from £280

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Florida Keys departing on 28/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London Heathrow Airport to Florida Keys

Cheap return flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
17:00 - 18:35LHR-MIA
30h 35m2 stops
Scandinavian Airlines Logo
20:40 - 17:00MIA-LHR
15h 20m1 stop
£400Scandinavian Airlines
Find Deal
Sat, 17 Jan - Wed, 21 Jan
Icelandair Logo
12:15 - 20:55LHR-MIA
13h 40m1 stop
Icelandair Logo
17:15 - 10:50MIA-LHR
12h 35m1 stop
£401Icelandair
Find Deal
Tue, 2 Dec - Wed, 10 Dec
Scandinavian Airlines Logo
19:50 - 18:05LHR-MIA
27h 15m2 stops
Scandinavian Airlines Logo
19:55 - 21:20MIA-LHR
20h 25m1 stop
£402Scandinavian Airlines
Find Deal
Wed, 3 Dec - Wed, 10 Dec
Finnair Logo
12:10 - 17:05LHR-MIA
9h 55mdirect
Finnair Logo
22:50 - 12:20MIA-LHR
8h 30mdirect
£413Finnair
Find Deal
Sat, 15 Nov - Tue, 13 Jan
British Airways Logo
11:15 - 23:07LHR-EYW
16h 52m1 stop
British Airways Logo
12:00 - 06:50EYW-LHR
13h 50m1 stop
£475British Airways
Find Deal
Wed, 3 Dec - Wed, 10 Dec
British Airways Logo
08:15 - 23:56LHR-EYW
44h 41m2 stops
British Airways Logo
13:33 - 11:30EYW-LHR
16h 57m1 stop
£491British Airways
Find Deal
Tue, 6 Jan - Mon, 26 Jan
Virgin Atlantic Logo
08:55 - 20:06LHR-EYW
16h 11m1 stop
Virgin Atlantic Logo
11:47 - 09:00EYW-LHR
16h 13m1 stop
£492Virgin Atlantic
Find Deal
Thu, 18 Dec - Thu, 25 Dec
Virgin Atlantic Logo
10:45 - 20:06LHR-EYW
14h 21m1 stop
Virgin Atlantic Logo
15:02 - 10:50EYW-LHR
14h 48m2 stops
£499Virgin Atlantic
Find Deal
Wed, 3 Dec - Wed, 10 Dec
KLM Logo
08:55 - 19:42LHR-EYW
15h 47m1 stop
KLM Logo
14:45 - 07:50EYW-LHR
12h 05m1 stop
£531KLM
Find Deal
Fri, 9 Jan - Mon, 2 Feb
KLM Logo
10:45 - 19:42LHR-EYW
13h 57m1 stop
KLM Logo
12:26 - 07:50EYW-LHR
14h 24m1 stop
£540KLM
Find Deal
Thu, 8 Jan - Fri, 30 Jan

Icelandair flights from London Heathrow Airport to Florida Keys

Our best Icelandair deals on London Heathrow Airport to Florida Keys flight tickets
Icelandair
2 Dec
LHR12:15London Heathrow
13h 40m
1 stop
MIA20:55Miami
10 Dec
MIA17:15Miami
12h 35m
1 stop
LHR10:50London Heathrow
£401
Find similar
Icelandair
14 Nov
LHR20:35London Heathrow
29h 20m
1 stop
MIA20:55Miami
4 Feb
MIA17:15Miami
21h 15m
1 stop
LHR19:30London Heathrow
£405
Find similar
Icelandair
19 Nov
LHR20:35London Heathrow
29h 20m
1 stop
MIA20:55Miami
26 Nov
MIA17:15Miami
12h 35m
1 stop
LHR10:50London Heathrow
£415
Find similar

Scandinavian Airlines flights from London Heathrow Airport to Florida Keys

Our best Scandinavian Airlines deals on London Heathrow Airport to Florida Keys flight tickets
Scandinavian Airlines
17 Jan
LHR17:00London Heathrow
30h 35m
2 stops
MIA18:35Miami
21 Jan
MIA20:40Miami
15h 20m
1 stop
LHR17:00London Heathrow
£400
Find similar
Scandinavian Airlines
3 Dec
LHR19:50London Heathrow
27h 15m
2 stops
MIA18:05Miami
10 Dec
MIA19:55Miami
20h 25m
1 stop
LHR21:20London Heathrow
£402
Find similar
Scandinavian Airlines
7 Mar
LHR17:00London Heathrow
30h 35m
1 stop
MIA18:35Miami
15 Mar
MIA21:40Miami
14h 20m
1 stop
LHR16:00London Heathrow
£403
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 4 November 2025.
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

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 17/1

17:00-18:35

2 stops30h 35m

Miami

Wed 21/1

20:40-17:00

1 stop15h 20m

£400

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 2/12

12:15-20:55

1 stop13h 40m

Miami

Wed 10/12

17:15-10:50

1 stop12h 35m

£401

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 3/12

19:50-18:05

2 stops27h 15m

Miami

Wed 10/12

19:55-21:20

1 stop20h 25m

£402

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Sat 15/11

12:10-17:05

Nonstop9h 55m

Miami

Tue 13/1

22:50-12:20

Nonstop8h 30m

£413

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 3/12

11:15-23:07

1 stop16h 52m

Key West

Wed 10/12

12:00-06:50

1 stop13h 50m

£475

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Tue 6/1

08:15-23:56

2 stops44h 41m

Key West

Mon 26/1

13:33-11:30

1 stop16h 57m

£491

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 18/12

08:55-20:06

1 stop16h 11m

Key West

Thu 25/12

11:47-09:00

1 stop16h 13m

£492

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Wed 3/12

10:45-20:06

1 stop14h 21m

Key West

Wed 10/12

15:02-10:50

2 stops14h 48m

£499

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Fri 9/1

08:55-19:42

1 stop15h 47m

Key West

Mon 2/2

14:45-07:50

1 stop12h 05m

£531

LondonKey West

LHR - EYW

LHREYW

London Heathrow

Thu 8/1

10:45-19:42

1 stop13h 57m

Key West

Fri 30/1

12:26-07:50

1 stop14h 24m

£540

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Florida Keys from

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

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 £455, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Florida Keys, with average flight prices from London Heathrow Airport averaging around £470.

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 £575. 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 £683.

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 in the evening. Flights from London Heathrow Airport to Florida Keys during this time can be as low as £547. Flights in the morning are often more expensive, with an average ticket price of £639.

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 £545 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 £506 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

1 airport
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 is 1 airport near Florida Keys: Miami (MIA)
Search flight deals

  • 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?

  • 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?

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 AirwaysPriceFrom £460Free CancellationRating
6.7
7,494 reviews
Search British Airways flights
Virgin AtlanticPriceFrom £501Free CancellationRating
7.5
671 reviews
Search Virgin Atlantic flights
American AirlinesPriceFrom £528Free CancellationRating
7.2
11,038 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.

An easier way to manage your Florida Keys trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 4/12
Thu 11/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Florida Keys

Popular Cities in Florida Keys

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom £257
Flights to Orlandofrom £248
Flights to Los Angelesfrom £352
Flights to Miamifrom £315
Flights to San Franciscofrom £359
Flights to Bostonfrom £329
Flights to Chicagofrom £348
Flights to Las Vegasfrom £390
Flights to Washington, D.C.from £330
Flights to Atlantafrom £292
Flights to Dallasfrom £315
Flights to Houstonfrom £336