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$374+ Cheap flights from Key West (EYW) to Heathrow (LHR)

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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — LHR
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Find flight deals from Key West to Heathrow

Cheapest flights from Key West to Heathrow
Explore the most affordable flight options available from Key West to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.

This KLM deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/71:57 pmEYW - LHR
1 stop12h 53mKLM
Sun 11/98:55 amLHR - EYW
1 stop13h 28mKLM
Deal found 11/2$697
This Virgin Atlantic deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/712:22 pmEYW - LHR
2 stops15h 23mVirgin Atlantic
Sun 11/910:45 amLHR - EYW
1 stop14h 08mVirgin Atlantic
Deal found 11/2$702
This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/71:33 pmEYW - LHR
1 stop12h 17mAmerican Airlines
Sun 12/1411:45 amLHR - EYW
1 stop15h 00mAmerican Airlines
Deal found 10/31$735
This Delta deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:40 amEYW - LHR
1 stop19h 10mDelta
Sun 12/146:30 amLHR - EYW
2 stops15h 45mDelta
Deal found 11/1$880
This FlightHub deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/71:33 pmEYW - LHR
2 stops23h 47mMultiple Airlines
Sun 12/142:30 pmLHR - EYW
1 stop13h 37mMultiple Airlines
Deal found 10/31$899

Cheap flight deals from Key West to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Key West (EYW) to Heathrow (LHR). 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 November 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$635
(British Airways)

One-way from

$374
(Expedia)
Provider with most accurate pricing for Key West-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Key West-London Heathrow flights.
Search Deals
From Key West to London Heathrow
Search Deals
One-way flight from Key West to London Heathrow
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Key West to Heathrow 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 2,558,603 searches. Data last updated November 2, 2025.
Use the filters below to find and compare flights from Key West to London Heathrow Airport that are best for you.

Fly from

Key West

Fly to

Heathrow

Route

Depart

Return

Price

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 2/1

1:33 pm-11:30 am

1 stop16h 57m

London Heathrow

Tue 2/10

11:25 am-11:56 pm

2 stops17h 31m

$635

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 2/1

6:43 pm-12:00 pm

1 stop12h 17m

London Heathrow

Tue 2/10

9:55 am-6:01 pm

1 stop13h 06m

$655

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 12/7

7:40 am-6:25 am

1 stop17h 45m

London Heathrow

Sun 12/14

10:45 am-8:06 pm

1 stop14h 21m

$697

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 2/1

7:10 am-7:40 am

2 stops19h 30m

London Heathrow

Tue 2/10

6:20 am-7:42 pm

2 stops18h 22m

$733

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sun 12/7

1:33 pm-6:50 am

1 stop12h 17m

London Heathrow

Sun 12/14

11:45 am-9:45 pm

1 stop15h 00m

$735

Key WestLondon

EYW - LHR

EYWLHR

Key West

Fri 3/27

6:00 pm-9:00 am

1 stop11h 00m

London Heathrow

Tue 3/31

6:30 am-7:44 pm

2 stops18h 14m

$760

Key WestLondon

EYW - LHR

EYWLHR

Key West

Fri 3/27

2:35 pm-9:00 am

1 stop14h 25m

London Heathrow

Tue 3/31

10:55 am-7:44 pm

1 stop13h 49m

$771

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sat 11/8

12:45 pm-6:55 am

1 stop13h 10m

$374

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sat 11/8

4:00 pm-7:30 am

2 stops34h 30m

$425

Key WestLondon

EYW - LHR

EYWLHR

Key West

Sat 11/8

10:47 am-6:55 am

3 stops39h 08m

$613

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Compare providers for flights from Key West to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Key West to Heathrow in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Key West-London Heathrow Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Key West-London Heathrow Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Key West-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Key West-London Heathrow Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Key West-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Key West to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Key West with our price prediction graph.
Estimated round-trip 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.

Related info for your journey

Find useful and relevant information for your journey from Key West to Heathrow. 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 Heathrow?

    If you book a flight to London Heathrow from Key West, you will be flying from Key West, which is the city’s only airport. Key West (EYW) is located 2.6 mi from the center of Key West. There are 0 flights from Key West to London Heathrow per day from 0 different airlines.

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

    A quick flight from Key West to London Heathrow Airport can take about 16h 57m. British Airways provides one of the quickest options available for as low as $635. The distance from Key West to London Heathrow Airport is about 4539 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key West to Heathrow 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

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