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Cheap flights from Florida Keys to London from £245

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Florida Keys to London departing on 10/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Florida Keys to London

Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
16:50 - 12:50
EYW
-
LHR
15h 00m
1 stop
American Airlines Logo
08:15 - 18:44
LHR
-
EYW
15h 29m
2 stops
£640American Airlines
Tue, 25 Aug - Thu, 3 Sep
Delta Logo
11:49 - 13:15
EYW
-
LHR
20h 26m
1 stop
Delta Logo
06:30 - 19:45
LHR
-
EYW
18h 15m
2 stops
£645Delta
Tue, 18 Aug - Tue, 1 Sep
KLM Logo
18:15 - 13:15
EYW
-
LHR
14h 00m
1 stop
KLM Logo
09:20 - 17:14
LHR
-
EYW
12h 54m
1 stop
£667KLM
Mon, 17 Aug - Tue, 1 Sep
KLM Logo
07:40 - 06:25
EYW
-
LHR
17h 45m
1 stop
KLM Logo
09:20 - 19:45
LHR
-
EYW
15h 25m
1 stop
£668KLM
Tue, 18 Aug - Tue, 1 Sep
TAP AIR PORTUGAL Logo
03:50 - 09:45
MIA
-
LGW
24h 55m
1 stop
TAP AIR PORTUGAL Logo
21:15 - 14:35
LGW
-
MIA
22h 20m
2 stops
£675TAP AIR PORTUGAL
Wed, 2 Sep - Tue, 8 Sep
TAP AIR PORTUGAL Logo
03:50 - 22:00
MIA
-
LHR
13h 10m
1 stop
TAP AIR PORTUGAL Logo
13:45 - 14:35
LHR
-
MIA
29h 50m
1 stop
£677TAP AIR PORTUGAL
Wed, 2 Sep - Sat, 12 Sep
British Airways Logo
22:40 - 12:35
MIA
-
LHR
8h 55mdirect
British Airways Logo
09:55 - 14:30
LHR
-
MIA
9h 35mdirect
£680British Airways
Tue, 4 Aug - Thu, 20 Aug
Virgin Atlantic Logo
22:35 - 12:35
MIA
-
LHR
9h 00mdirect
Virgin Atlantic Logo
19:45 - 17:50
LHR
-
MIA
27h 05m
1 stop
£682Virgin Atlantic
Tue, 21 Jul - Tue, 18 Aug
Virgin Atlantic Logo
20:10 - 16:00
MIA
-
LGW
14h 50m
1 stop
Virgin Atlantic Logo
10:25 - 22:48
LGW
-
MIA
17h 23m
2 stops
£685Virgin Atlantic
Mon, 21 Sep - Wed, 30 Sep
British Airways Logo
14:01 - 09:00
EYW
-
LHR
13h 59m
1 stop
British Airways Logo
09:55 - 18:24
LHR
-
EYW
13h 29m
1 stop
£738British Airways
Sat, 10 Oct - Mon, 12 Oct

Air Canada flights from Florida Keys to London

Our best Air Canada deals on Florida Keys to London flight tickets
Air Canada
28 Oct
MIA13:00Miami
15h 30m
2 stops
LHR08:30London Heathrow
11 Nov
LHR06:50London Heathrow
20h 39m
2 stops
MIA22:29Miami
£674
Air Canada
2 Sept
MIA08:15Miami
17h 15m
1 stop
LHR06:30London Heathrow
23 Sept
LHR08:40London Heathrow
18h 37m
2 stops
MIA22:17Miami
£675
Air Canada
2 Sept
MIA07:00Miami
22h 00m
2 stops
LHR10:00London Heathrow
9 Sept
LHR08:40London Heathrow
18h 37m
2 stops
MIA22:17Miami
£679

United Airlines flights from Florida Keys to London

Our best United Airlines deals on Florida Keys to London flight tickets
United Airlines
21 Sept
MIA08:48Miami
20h 12m
2 stops
LHR10:00London Heathrow
30 Sept
LHR08:40London Heathrow
13h 45m
1 stop
MIA17:25Miami
£676
United Airlines
25 Aug
MIA08:45Miami
17h 10m
2 stops
LHR06:55London Heathrow
15 Sept
LHR08:45London Heathrow
13h 40m
1 stop
MIA17:25Miami
£676
United Airlines
21 Aug
MIA13:44Miami
12h 11m
1 stop
LHR06:55London Heathrow
9 Sept
LHR08:40London Heathrow
13h 45m
1 stop
MIA17:25Miami
£710

momondo Fare Finder

 
Customise your flight search to find flights from Florida Keys to London 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 15 May 2026.
Use the filters below to find and compare flights from Florida Keys to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 25/8

16:50-12:50

1 stop15h 00m

London Heathrow

Thu 3/9

08:15-18:44

2 stops15h 29m

£640

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 18/8

11:49-13:15

1 stop20h 26m

London Heathrow

Tue 1/9

06:30-19:45

2 stops18h 15m

£645

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 17/8

18:15-13:15

1 stop14h 00m

London Heathrow

Tue 1/9

09:20-17:14

1 stop12h 54m

£667

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 18/8

07:40-06:25

1 stop17h 45m

London Heathrow

Tue 1/9

09:20-19:45

1 stop15h 25m

£668

MiamiLondon

MIA - LGW

MIALGW

Miami

Wed 2/9

03:50-09:45

1 stop24h 55m

London Gatwick

Tue 8/9

21:15-14:35

2 stops22h 20m

£675

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 2/9

03:50-22:00

1 stop13h 10m

London Heathrow

Sat 12/9

13:45-14:35

1 stop29h 50m

£677
Fastest return journey

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 4/8

22:40-12:35

Nonstop8h 55m

London Heathrow

Thu 20/8

09:55-14:30

Nonstop9h 35m

£680

MiamiLondon

MIA - LHR

MIALHR

Miami

Tue 21/7

22:35-12:35

Nonstop9h 00m

London Heathrow

Tue 18/8

19:45-17:50

1 stop27h 05m

£682

MiamiLondon

MIA - LGW

MIALGW

Miami

Mon 21/9

20:10-16:00

1 stop14h 50m

London Gatwick

Wed 30/9

10:25-22:48

2 stops17h 23m

£685

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sat 10/10

14:01-09:00

1 stop13h 59m

London Heathrow

Mon 12/10

09:55-18:24

1 stop13h 29m

£738

Flights are sorted by cheapest return flights first.

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

See travel insights to London from

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

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 London?

The cheapest month to fly to London from Florida Keys is in February. Flight prices, which tend to average around £278, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Florida Keys averaging around £284.

What is the cheapest day to depart on your flight to London?

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £489. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Florida Keys to London for around £652.

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

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £587. Flights in the evening are often more expensive, with an average ticket price of £603.

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

You are more likely to see cheaper flights to London from Florida Keys when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £594 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Florida Keys for as low as £498 on momondo.

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

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

Cheap Florida Keys to London flight deals and tips

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

Fastest flight time

8h 30m

Direct flights

Every day

Airports in London

6 airports
The fastest flight from Florida Keys to London takes 8h 30m
Direct flights go from Florida Keys to London every day.
There are 6 airports in London. From Florida Keys there are direct flights to London Heathrow (LHR).
Search flight deals

Frequently asked questions about flying from Florida Keys to London

  • When did momondo last update prices for flights from Florida Keys to London?

    Prices for flights from Florida Keys to London were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Florida Keys to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Florida Keys to London?

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Wembley
Slough
Maidstone
Ipswich
Southend-on-Sea
Canterbury
Ilford
Hayes
Guildford
Folkestone
Chelmsford
Dover
Bedford
Chichester
Harlow
Colchester

Why use momondo?

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

It is quick and easy to find Florida Keys to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Yes. momondo enables you to select and highlight flights to London from Florida Keys with this policy.

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

momondo provides multiple filters to help you find the best flight to London from Florida Keys. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Florida Keys to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport