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Cheap flights from Florida Keys to London from £239

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 22/3. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — LON
31 Dec — 7 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Florida Keys to London

Keep the following information in mind while searching for Florida Keys to London flight deals. Data was last updated 1 December 2025.

Round-trip from

£440

One-way from

£239
British Airways
  • British Airways
  • 1/2-10/2
  • 3 total stops
  • 54h 46m total
  • Florida Keys to London
Search Deals
22/3
  • 22/3
  • 3 total stops
  • 35h 02m total
  • Florida Keys to London
Search Deals

Find flight deals from Florida Keys to London

Enter your travel dates to find the best prices.

Cheapest flights from Florida Keys to London
Explore the most affordable flight options available from Florida Keys to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 December 2025.

Mon 8/1217:50MIA - LHR
1 stop12h 15mUnited Airlines
Mon 15/1206:50LHR - MIA
2 stops18h 19mUnited Airlines
Deal found 1/12£468
Thu 11/1220:53MIA - LHR
2 stops29h 17mMultiple Airlines
Sun 14/1213:25LHR - MIA
2 stops30h 38mMultiple Airlines
Deal found 29/11£475
Sat 6/1221:10MIA - LGW
1 stop17h 00mMultiple Airlines
Tue 9/1208:30LGW - MIA
1 stop15h 25mMultiple Airlines
Deal found 1/12£476
Sun 30/1123:50MIA - LGW
2 stops15h 45mTAP AIR PORTUGAL
Sun 7/1210:40LGW - MIA
1 stop33h 10mTAP AIR PORTUGAL
Deal found 29/11£478
Sun 7/1208:00MIA - LHR
2 stops31h 35mAir Canada
Sun 14/1209:00LHR - MIA
2 stops18h 29mAir Canada
Deal found 30/11£479
Fri 5/1223:35MIA - LHR
1 stop18h 05mTAP AIR PORTUGAL
Mon 8/1206:00LHR - MIA
1 stop13h 50mTAP AIR PORTUGAL
Deal found 29/11£480
Thu 4/1209:18MIA - LHR
2 stops21h 02mMultiple Airlines
Sun 7/1213:25LHR - MIA
2 stops30h 38mMultiple Airlines
Deal found 29/11£480
Thu 4/1221:10MIA - LGW
1 stop17h 15mMultiple Airlines
Sat 6/1208:30LGW - MIA
1 stop15h 25mMultiple Airlines
Deal found 30/11£481
Wed 31/1207:25MIA - LHR
1 stop22h 55mMultiple Airlines
Wed 7/117:10LHR - MIA
1 stop26h 30mMultiple Airlines
Deal found 29/11£482
Wed 10/1213:25MIA - LHR
1 stop13h 05mUnited Airlines
Mon 22/1216:20LHR - MIA
1 stop24h 27mUnited Airlines
Deal found 1/12£483
Thu 4/1220:53MIA - LHR
2 stops29h 17mMultiple Airlines
Tue 9/1209:00LHR - MIA
2 stops30h 05mMultiple Airlines
Deal found 29/11£483
Tue 2/1221:45MIA - LGW
1 stop13h 40mAir Europa
Wed 10/1210:00LGW - MIA
1 stop14h 30mAir Europa
Deal found 29/11£485

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 1 December 2025.
Use the filters below to find and compare flights from Florida Keys to London that are best for you.

Fly from

Florida Keys

Fly to

London

Route

Depart

Return

Price

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/2

19:45-08:35

1 stop31h 50m

London Heathrow

Tue 10/2

06:00-19:10

2 stops18h 10m

£440

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 28/1

12:20-06:25

1 stop13h 05m

London Heathrow

Sun 1/2

06:30-19:40

2 stops18h 10m

£455

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 28/1

07:10-07:50

1 stop19h 40m

London Heathrow

Sun 1/2

06:30-19:40

2 stops18h 10m

£456

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 25/1

14:45-09:00

1 stop13h 15m

London Heathrow

Sun 1/2

06:30-19:40

2 stops18h 10m

£456

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 1/2

18:43-12:00

1 stop12h 17m

London Heathrow

Tue 10/2

11:55-23:56

1 stop17h 01m

£457

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 25/1

14:45-11:55

2 stops16h 10m

London Heathrow

Sun 1/2

06:30-19:40

2 stops18h 10m

£459

MiamiLondon

MIA - LGW

MIALGW

Miami

Mon 12/1

21:45-16:25

1 stop13h 40m

London Gatwick

Mon 19/1

17:25-19:30

1 stop31h 05m

£475

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 7/1

16:19-11:15

1 stop13h 56m

London Heathrow

Fri 30/1

07:25-21:54

2 stops19h 29m

£476

MiamiLondon

MIA - LHR

MIALHR

Miami

Wed 7/1

12:18-05:55

1 stop12h 37m

London Heathrow

Mon 26/1

07:55-21:54

2 stops18h 59m

£476

MiamiLondon

MIA - LCY

MIALCY

Miami

Fri 23/1

16:40-11:40

1 stop14h 00m

London City

Mon 26/1

13:30-17:30

1 stop33h 00m

£477

Flights are sorted by cheapest return flights first.

Deals found on 29/11

Showing 1-10 of 60 results
1
2
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6

Best time to book a flight from Florida Keys to London

Have a flexible travel schedule? Discover the best time to fly to London from Florida Keys 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 Florida Keys to London
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 1 December 2025.
Get a feel of what it's like to fly with KLM, Virgin Atlantic, andNorse Atlantic UK from Florida Keys to London by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,425 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Food

7.2

Overall

7.7

Crew

8.4

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,425 reviews
KLM
7.7
Good
1,425 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Food

7.2

Overall

7.7

Crew

8.4

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
675 reviews
KLM
7.7
Good
1,425 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Food

7.2

Overall

7.7

Crew

8.4

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Norse Atlantic UK
7.2
Good
KLM
7.7
Good
1,425 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Food

7.2

Overall

7.7

Crew

8.4

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
TAP AIR PORTUGAL
7.1
Good
2,079 reviews
KLM
7.7
Good
1,425 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Food

7.2

Overall

7.7

Crew

8.4

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,549 reviews
KLM
7.7
Good
1,425 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Food

7.2

Overall

7.7

Crew

8.4

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from Florida Keys to London. 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 Florida Keys to London?

    Airlines like British Airways, Virgin Atlantic, and Delta fly from Florida Keys to London in about 13h 05m. The time it takes to get you to your destination can typically vary by up to 18h 45m. The distance between Florida Keys and London is about 4539 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The cheapest airline one-way is Royal Air Maroc, with whom users have recently found tickets for as low as £254. However, be on the lookout for offers from Iberia and LEVEL, as they are both options that can get you from Florida Keys to London for a low price.

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

    Most travelers choose Miami - London Heathrow, Miami - London Gatwick or Miami - London City when deciding on the best route from Florida Keys to London.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Florida Keys to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Fly with Cheapflights

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

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Florida Keys.

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

Yes, we can. To see specific flights from Florida Keys to London 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 Florida Keys to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Florida Keys today and book when prices fit your budget.

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