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Cheap flights from London to Florida Keys from £364

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — EYW
8 Feb — 15 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Florida Keys

Keep the following information in mind while searching for London to Florida Keys flight deals. Data was last updated 9 January 2026.

Round-trip from

£398

One-way from

£364

Popular in

December

Cheapest in

September

Average price

£464
United Airlines
  • United Airlines
  • 20/2-14/3
  • 3 total stops
  • 34h 40m total
  • London to Florida Keys
Search Deals
SWISS
  • SWISS
  • 15/2
  • 1 total stop
  • 24h 20m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from London to Florida Keys

Enter your travel dates to find the best prices.

Cheapest flights from London to Florida Keys
Explore the most affordable flight options available from London to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 January 2026.

Wed 9/911:30LHR - MIA
1 stop13h 35mIberia
Wed 16/919:05MIA - LHR
Nonstop8h 55mIberia
Deal found 8/1£397
Fri 20/208:00LHR - MIA
2 stops19h 20mUnited Airlines
Sat 14/317:40MIA - LHR
1 stop15h 20mUnited Airlines
Deal found 8/1£398
Wed 14/117:40LCY - MIA
1 stop26h 00mSWISS
Mon 19/119:50MIA - LCY
1 stop16h 15mSWISS
Deal found 8/1£399
Mon 23/209:25LHR - MIA
Nonstop10h 25mDelta
Wed 15/418:05MIA - LHR
Nonstop9h 00mDelta
Deal found 8/1£399
Tue 10/311:45LGW - MIA
1 stop14h 00mMultiple Airlines
Tue 17/318:20MIA - LGW
1 stop12h 30mMultiple Airlines
Deal found 8/1£399
Mon 16/214:45LHR - MIA
Nonstop10h 25mDelta
Mon 2/317:10MIA - LHR
Nonstop8h 50mDelta
Deal found 8/1£399
Wed 14/117:25LGW - MIA
1 stop31h 05mAir Europa
Fri 6/321:45MIA - LGW
1 stop13h 40mAir Europa
Deal found 8/1£399
Tue 17/309:15LCY - MIA
1 stop13h 15mSWISS
Tue 31/316:50MIA - LCY
1 stop19h 40mSWISS
Deal found 8/1£400
Tue 10/214:35LHR - MIA
Nonstop10h 25mDelta
Wed 25/221:25MIA - LHR
Nonstop8h 45mDelta
Deal found 7/1£400
Sat 17/116:35LGW - MIA
1 stop27h 15mTAP AIR PORTUGAL
Mon 26/116:35MIA - LGW
1 stop12h 15mTAP AIR PORTUGAL
Deal found 7/1£400
Thu 29/117:40LCY - MIA
1 stop28h 50mSWISS
Mon 2/216:40MIA - LCY
1 stop19h 25mSWISS
Deal found 7/1£401
Fri 13/218:00LHR - MIA
1 stop31h 20mAir Canada
Wed 25/212:20MIA - LHR
1 stop13h 10mAir Canada
Deal found 8/1£401

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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, Cheapflights users made 858,174 searches. Data last updated 9 January 2026.
Use the filters below to find and compare flights from London to Florida Keys that are best for you.

Fly from

London

Fly to

Florida Keys

Route

Depart

Return

Price

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 16/2

14:45-20:10

Nonstop10h 25m

Miami

Tue 3/3

17:10-07:00

Nonstop8h 50m

£399

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 17/2

09:25-14:50

Nonstop10h 25m

Miami

Thu 26/2

22:10-11:55

Nonstop8h 45m

£399

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Tue 17/2

14:35-20:00

Nonstop10h 25m

Miami

Tue 3/3

17:10-07:00

Nonstop8h 50m

£399

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Mon 16/2

09:25-14:50

Nonstop10h 25m

Miami

Thu 26/2

17:10-07:00

Nonstop8h 50m

£399

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Wed 18/2

14:00-19:25

Nonstop10h 25m

Miami

Tue 3/3

22:00-11:45

Nonstop8h 45m

£399

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 24/2

10:00-19:30

1 stop14h 30m

Miami

Thu 26/2

21:45-16:25

1 stop13h 40m

£402

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 10/3

10:00-20:30

1 stop14h 30m

Miami

Mon 16/3

22:45-16:25

1 stop13h 40m

£402

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Tue 24/2

10:00-19:30

1 stop14h 30m

Miami

Mon 2/3

21:45-16:25

1 stop13h 40m

£402

LondonMiami

LHR - MIA

LHRMIA

London Heathrow

Fri 6/3

06:50-20:27

2 stops18h 37m

Miami

Sun 8/3

19:45-15:50

2 stops16h 05m

£403

LondonMiami

LGW - MIA

LGWMIA

London Gatwick

Mon 16/2

10:00-19:30

1 stop14h 30m

Miami

Thu 19/2

21:45-16:25

1 stop13h 40m

£404

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Showing 1-10 of 60 results
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Best time to book a flight from London to Florida Keys

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

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

Currently, February is the cheapest month in which you can book a flight from London to Florida Keys (average of £434). Flying from London to Florida Keys in July is currently the most expensive (average of £626). 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.

Reviews of airlines servicing Florida Keys

Get insights into the airlines that provide service to Florida Keys. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Florida Keys. Reviews last updated 9 January 2026.
Read reviews from past customers who have flown with KLM, Finnair, andVirgin Atlantic from London to Florida Keys. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,434 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Overall

7.7

Food

7.2

Comfort

7.6

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,434 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Overall

7.7

Food

7.2

Comfort

7.6

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Finnair
7.6
Good
1,346 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Overall

7.7

Food

7.2

Comfort

7.6

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Overall

7.7

Food

7.2

Comfort

7.6

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Norse Atlantic UK
7.2
Good
KLM
7.7
Good
1,434 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Overall

7.7

Food

7.2

Comfort

7.6

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,659 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Overall

7.7

Food

7.2

Comfort

7.6

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

Find useful and relevant information for your journey from London to Florida Keys. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to Florida Keys?

    There are many flights that can get you from London to Florida Keys in 10h 25m. Fly via Delta, Air Europa, or British Airways to get the fastest option. Airlines will cover a distance of 4414 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Norse Atlantic UK, with whom users have recently found tickets for as low as £148. However, be on the lookout for offers from Scandinavian Airlines and A.P.G., as they are both options that can get you from London to Florida Keys for a low price.

  • What are the most popular routes from London to Florida Keys?

    While some choose either London Gatwick - Miami or London City - Miami, London Heathrow - Miami is the most popular route from London to Florida Keys.

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

    Yes. In addition to deals on London to Florida Keys flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Florida Keys?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Florida Keys.

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

    Yes. Cheapflights offers flight deals from London 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 to Florida Keys?

    Currently, February is the cheapest month in which you can book a flight from London to Florida Keys (average of £434). Flying from London to Florida Keys in July is currently the most expensive (average of £626). 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

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Alternative routes for London to Florida Keys

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from London to Florida Keys

Discover the top 3 airlines that operate flights from London to Florida Keys. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 9 January 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£450Average£506FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£491Average£791FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£516Average£555FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from London to Florida Keys via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to Florida Keys.

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

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

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

Of course! You can now track prices for flights from London to Florida Keys 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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