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$655+ Cheap flights from Key West (EYW) to London (LON)

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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — LON
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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Cheap flight deals from Key West to London

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 February 11, 2026.

This Delta deal was found by Cheapflights users on 2/7. 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.
Mon 4/136:19 pm
EYW
-
LHR
1 stop13h 56m
Delta
Wed 4/226:15 am
LHR
-
EYW
2 stops16h 08m
Delta
Deal found 2/7$655
This United Airlines deal was found by Cheapflights users on 2/8. 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.
Mon 4/62:35 pm
EYW
-
LHR
1 stop13h 45m
United Airlines
Tue 4/149:30 am
LHR
-
EYW
2 stops34h 21m
United Airlines
Deal found 2/8$657
This KLM deal was found by Cheapflights users on 2/9. 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.
Tue 3/2411:43 am
EYW
-
LHR
1 stop17h 17m
KLM
Tue 3/318:55 pm
LHR
-
EYW
2 stops25h 35m
KLM
Deal found 2/9$664
This KLM deal was found by Cheapflights users on 2/7. 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.
Mon 4/67:30 am
EYW
-
LHR
1 stop17h 55m
KLM
Tue 4/1411:15 am
LHR
-
EYW
1 stop13h 25m
KLM
Deal found 2/7$677
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Tue 3/242:24 pm
EYW
-
LHR
2 stops37h 41m
United Airlines
Tue 3/3112:40 pm
LHR
-
EYW
2 stops33h 59m
United Airlines
Deal found 2/9$679
This Delta deal was found by Cheapflights users on 2/7. 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.
Wed 4/811:43 am
EYW
-
LHR
2 stops17h 57m
Delta
Fri 4/173:15 pm
LHR
-
EYW
1 stop24h 35m
Delta
Deal found 2/7$681
This Virgin Atlantic deal was found by Cheapflights users on 2/10. 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.
Mon 4/67:30 am
EYW
-
LHR
1 stop18h 15m
Virgin Atlantic
Tue 4/149:40 am
LHR
-
EYW
2 stops15h 00m
Virgin Atlantic
Deal found 2/10$682
This American Airlines deal was found by Cheapflights users on 2/9. 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.
Tue 3/247:42 pm
EYW
-
LHR
1 stop12h 23m
American Airlines
Tue 3/319:15 am
LHR
-
EYW
1 stop18h 03m
American Airlines
Deal found 2/9$693
This Delta deal was found by Cheapflights users on 2/7. 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.
Thu 4/1611:46 am
EYW
-
LHR
1 stop13h 39m
Delta
Wed 4/226:15 am
LHR
-
EYW
2 stops16h 08m
Delta
Deal found 2/7$705
This oojo deal was found by Cheapflights users on 2/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/67:42 pm
EYW
-
LHR
1 stop10h 23m
British Airways
Tue 4/147:50 am
LHR
-
EYW
2 stops20h 08m
British Airways
Deal found 2/10$721
This Delta deal was found by Cheapflights users on 2/7. 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.
Thu 4/232:40 pm
EYW
-
LHR
1 stop11h 05m
Delta
Thu 4/309:20 am
LHR
-
EYW
1 stop13h 03m
Delta
Deal found 2/7$727
This KAYAK deal was found by Cheapflights users on 2/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:25 pm
EYW
-
LHR
1 stop31h 00m
Scandinavian Airlines
Sun 4/129:40 am
LHR
-
EYW
2 stops15h 01m
Scandinavian Airlines
Deal found 2/8$730

Find 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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$655
(Delta)
Provider with most accurate pricing for Key West-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Key West-London (LON) flights.
Search Deals
From Key West to London (LON)
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated February 11, 2026.
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

Mon 4/27

6:19 pm-1:15 pm

1 stop13h 56m

London Heathrow

Wed 5/6

6:15 am-5:23 pm

2 stops16h 08m

$655

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 5/5

7:33 am-6:45 am

1 stop18h 12m

London Heathrow

Tue 5/12

6:15 am-5:27 pm

2 stops16h 12m

$655

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 5/4

1:22 pm-12:05 pm

1 stop17h 43m

London Heathrow

Tue 5/12

6:15 am-5:27 pm

2 stops16h 12m

$655

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 3/24

11:43 am-9:00 am

1 stop17h 17m

London Heathrow

Tue 3/31

8:55 pm-5:30 pm

2 stops25h 35m

$664

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 4/7

2:35 pm-7:15 am

1 stop11h 40m

London Heathrow

Wed 4/15

9:30 am-5:39 pm

1 stop13h 09m

$677

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 4/7

2:35 pm-7:15 am

1 stop11h 40m

London Heathrow

Tue 4/14

9:30 am-5:39 pm

1 stop13h 09m

$677

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 4/1

4:38 pm-11:35 am

1 stop13h 57m

London Heathrow

Thu 4/9

9:30 am-5:39 pm

1 stop13h 09m

$677

Key WestLondon

EYW - LHR

EYWLHR

Key West

Wed 4/29

6:19 pm-1:15 pm

1 stop13h 56m

London Heathrow

Thu 5/7

9:20 am-5:27 pm

1 stop13h 07m

$677

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 4/20

7:33 am-6:45 am

1 stop18h 12m

London Heathrow

Tue 4/28

9:20 am-5:23 pm

1 stop13h 03m

$677

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 5/4

1:22 pm-12:05 pm

1 stop17h 43m

London Heathrow

Wed 5/13

9:20 am-5:27 pm

1 stop13h 07m

$677

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/7

Showing 1-10 of 18 results
1
2
  • Most accurate provider: When it comes to deals on Key West-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Key West-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Key West-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Key West-London flights, Cheapflights users trust FlightHub the most. FlightHub 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 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 London

Have a flexible travel schedule? Discover the best time to fly to London 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.

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.

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 February 11, 2026.
Get a feel of what it's like to fly with American Airlines from Key West to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,267 reviews

Boarding

7.5

Food

6.4

Crew

8.0

Entertainment

6.9

Comfort

7.2

Overall

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
American Airlines
7.2
Good
11,267 reviews
American Airlines
7.2
Good
11,267 reviews

Boarding

7.5

Food

6.4

Crew

8.0

Entertainment

6.9

Comfort

7.2

Overall

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.

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?

    Departing from Key West to London will take you 13h 56m. Key West and London are separated by a distance of 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 London that include hotel bookings?

    Yes. In addition to deals on Key West to London flights, Cheapflights offers vacation 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

Traveling to a place near London?

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