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$647+ Cheap flights from Key West (EYW) to Heathrow (LHR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — LHR
dic. 3 — dic. 101
mié. 12/3
mié. 12/10
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 noviembre 3, 2025.

This Delta deal was found by Cheapflights users on 11/3. 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.
dom. 12/77:40 amEYW - LHR
1 stop17h 45mDelta
dom. 12/1410:45 amLHR - EYW
1 stop14h 21mDelta
Deal found 11/3$697
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/77:40 amEYW - LHR
2 stops18h 25mDelta
dom. 11/98:00 pmLHR - EYW
2 stops28h 53mDelta
Deal found 11/2$702
This United Airlines deal was found by Cheapflights users on 11/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/72:47 pmEYW - LHR
1 stop13h 23mUnited Airlines
dom. 12/144:20 pmLHR - EYW
2 stops26h 31mUnited Airlines
Deal found 11/3$889
This FlightHub deal was found by Cheapflights users on 11/3. 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.
dom. 12/71:33 pmEYW - LHR
2 stops21h 52mMultiple Airlines
dom. 12/146:05 amLHR - EYW
2 stops22h 02mMultiple Airlines
Deal found 11/3$1,009

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 noviembre 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$647
(FlightHub)
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

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 noviembre 3, 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

dom. 2/1

1:33 pm-11:30 am

1 stop16h 57m

London Heathrow

mar. 2/10

7:40 pm-7:10 pm

2 stops28h 30m

$647

Key WestLondon

EYW - LHR

EYWLHR

Key West

dom. 12/7

7:40 am-7:50 am

1 stop19h 10m

London Heathrow

dom. 12/14

10:45 am-8:06 pm

1 stop14h 21m

$697

Key WestLondon

EYW - LHR

EYWLHR

Key West

mar. 4/14

2:30 pm-7:15 am

1 stop11h 45m

London Heathrow

mié. 4/29

7:25 am-10:11 pm

2 stops19h 46m

$705

Key WestLondon

EYW - LHR

EYWLHR

Key West

mar. 4/14

6:00 pm-1:30 pm

1 stop14h 30m

London Heathrow

mié. 4/29

10:55 am-7:44 pm

1 stop13h 49m

$735

Key WestLondon

EYW - LHR

EYWLHR

Key West

vie. 3/27

2:35 pm-7:50 am

1 stop13h 15m

London Heathrow

mar. 3/31

6:30 am-7:44 pm

2 stops18h 14m

$759

Key WestLondon

EYW - LHR

EYWLHR

Key West

vie. 3/27

2:35 pm-9:00 am

1 stop14h 25m

London Heathrow

mar. 3/31

10:55 am-7:44 pm

1 stop13h 49m

$787

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

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 $647. The distance from Key West to London Heathrow Airport is about 4539 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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
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Harrow
Croydon
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Dartford
Dover
Winchester
Orpington
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Gatwick
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