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Cheap flights from Key West to London from £440

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/2. 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 Key West to London

Discover tips and strategies to find the most affordable flight options for your journey from Key West (EYW) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 1 December 2025.

Round-trip from

£440
British Airways
  • British Airways
  • 1/2-10/2
  • 3 total stops
  • 54h 46m total
  • Key West to London
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Cheapest flights from Key West to London
Explore the most affordable flight options available from Key West to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 December 2025.

Sun 7/1207:40EYW - LHR
1 stop19h 10mKLM
Sun 14/1208:55LHR - EYW
1 stop13h 20mKLM
Deal found 30/11£565
Sun 7/1207:40EYW - LHR
1 stop19h 10mDelta
Sun 14/1208:55LHR - EYW
1 stop16h 11mDelta
Deal found 1/12£608
Sun 7/1213:33EYW - LHR
2 stops23h 47mMultiple Airlines
Sun 14/1219:05LHR - EYW
2 stops29h 30mMultiple Airlines
Deal found 30/11£616
Sun 7/1213:33EYW - LHR
2 stops21h 52mBritish Airways
Sun 14/1211:25LHR - EYW
2 stops37h 10mBritish Airways
Deal found 29/11£683
Sun 7/1213:33EYW - LGW
2 stops16h 17mBritish Airways
Sun 14/1211:45LGW - EYW
2 stops36h 50mBritish Airways
Deal found 29/11£1,016

Cheapflights Fare Finder

 
Customise your flight search to find flights from Key West 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 Key West to London that are best for you.

Fly from

Key West

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

Key WestLondon

EYW - LGW

EYWLGW

Key West

Sun 25/1

13:33-10:50

2 stops16h 17m

London Gatwick

Sun 1/2

11:45-23:56

2 stops17h 11m

£592

Key WestLondon

EYW - LGW

EYWLGW

Key West

Wed 28/1

06:06-07:30

2 stops20h 24m

London Gatwick

Sun 1/2

11:20-23:56

2 stops17h 36m

£599

Key WestLondon

EYW - LGW

EYWLGW

Key West

Sun 25/1

12:51-15:45

3 stops21h 54m

London Gatwick

Sun 1/2

09:05-13:30

3 stops33h 25m

£668

Flights are sorted by cheapest return flights first.

Deals found on 30/11

Best time to book a flight from Key West to London

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

Related info for your journey

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

  • What airport do you fly from for flights from Key West to London?

    Key West (EYW), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Key West to London. 0 airlines have flights from Key West to London on a regular basis. Booking flights from Key West to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.

  • How long is the flight from Key West to London?

    For as low as £455, British Airways can have you in London from Key West in 13h 05m. Airlines will cover a distance of 4539 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Key West to London that include hotel bookings?

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

  • How can I find direct flights from Key West to London?

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

  • Can I find deals for business class flights from Key West to London?

    Yes. Cheapflights offers flight deals from Key West 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 Key West to London?

Deals for Key West to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Key West to London?

Cheapflights helps you find that perfect flight to London from Key West by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Key West to London with no change fees?

Certainly. Search results for flights to London from Key West shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Key West to London become cheaper?

Not ready to book yet? You can track prices for flights from Key West to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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