HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$428+ Cheap flights from Key West (EYW) to London (LON)

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — LON
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Key West to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 29, 2025.

Round-trip from

$1,062
(Kiwi.com)

One-way from

$428
(Kiwi.com)

Popular in

June

Cheapest in

May

Average price

$837
From Key West to London (LON)
Search Deals
One-way flight from Key West to London (LON)
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find 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 April 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1310:12 amEYW - LGW
1 stop18h 48mMultiple Airlines
Sat 6/212:00 pmLGW - EYW
1 stop28h 17mMultiple Airlines
Deal found 4/29$1,062
This United Airlines deal was found by Cheapflights users on 4/29. 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 7/71:41 pmEYW - LHR
2 stops15h 59mUnited Airlines
Sat 7/194:40 pmLHR - EYW
2 stops25h 01mUnited Airlines
Deal found 4/29$1,158
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Mon 7/712:47 pmEYW - LHR
1 stop13h 53mAmerican Airlines
Sat 7/193:00 pmLHR - EYW
1 stop28h 14mAmerican Airlines
Deal found 4/29$1,162
This Air France deal was found by Cheapflights users on 4/29. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/246:29 pmEYW - LHR
1 stop11h 41mAir France
Tue 7/156:15 amLHR - EYW
2 stops18h 31mAir France
Deal found 4/29$1,270
This British Airways deal was found by Cheapflights users on 4/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/241:24 pmEYW - LHR
1 stop16h 11mBritish Airways
Tue 7/159:55 amLHR - EYW
1 stop14h 26mBritish Airways
Deal found 4/29$1,278
This Delta deal was found by Cheapflights users on 4/29. 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.
Tue 6/2411:48 amEYW - LHR
2 stops16h 02mDelta
Tue 7/158:10 pmLHR - EYW
2 stops19h 41mDelta
Deal found 4/29$1,282
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/132:07 pmEYW - LHR
2 stops21h 18mMultiple Airlines
Sun 6/227:30 amLHR - EYW
2 stops30h 52mMultiple Airlines
Deal found 4/29$1,319
This KLM deal was found by Cheapflights users on 4/29. 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 6/1311:48 amEYW - LHR
1 stop13h 57mKLM
Sun 6/228:55 pmLHR - EYW
2 stops25h 39mKLM
Deal found 4/29$1,404
This oojo deal was found by Cheapflights users on 4/29. 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 7/71:25 pmEYW - LGW
2 stops16h 30mBritish Airways
Sat 7/198:40 pmLGW - EYW
2 stops27h 41mBritish Airways
Deal found 4/29$1,964

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 April 29, 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 - LGW

EYWLGW

Key West

Fri 6/13

10:12 am-10:00 am

1 stop18h 48m

London Gatwick

Sat 6/21

2:00 pm-1:17 pm

1 stop28h 17m

$1,062

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 7/7

1:41 pm-10:40 am

2 stops15h 59m

London Heathrow

Sat 7/19

4:40 pm-12:41 pm

2 stops25h 01m

$1,158

Key WestLondon

EYW - LHR

EYWLHR

Key West

Mon 7/7

12:47 pm-7:40 am

1 stop13h 53m

London Heathrow

Sat 7/19

3:00 pm-2:14 pm

1 stop28h 14m

$1,162

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 6/24

6:29 pm-11:10 am

1 stop11h 41m

London Heathrow

Tue 7/15

6:15 am-7:46 pm

2 stops18h 31m

$1,270

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 6/24

1:24 pm-10:35 am

1 stop16h 11m

London Heathrow

Tue 7/15

9:55 am-7:21 pm

1 stop14h 26m

$1,278

Key WestLondon

EYW - LHR

EYWLHR

Key West

Tue 6/24

11:48 am-8:50 am

2 stops16h 02m

London Heathrow

Tue 7/15

8:10 pm-10:51 am

2 stops19h 41m

$1,282

Key WestLondon

EYW - LHR

EYWLHR

Key West

Fri 6/13

2:07 pm-4:25 pm

2 stops21h 18m

London Heathrow

Sun 6/22

7:30 am-9:22 am

2 stops30h 52m

$1,319

Key WestLondon

EYW - LHR

EYWLHR

Key West

Fri 6/13

11:48 am-6:45 am

1 stop13h 57m

London Heathrow

Sun 6/22

8:55 pm-5:34 pm

2 stops25h 39m

$1,404

Key WestLondon

EYW - LGW

EYWLGW

Key West

Mon 7/7

1:25 pm-10:55 am

2 stops16h 30m

London Gatwick

Sat 7/19

8:40 pm-7:21 pm

2 stops27h 41m

$1,964

Key WestLondon

EYW - LGW

EYWLGW

Key West

Thu 6/5

5:32 pm-9:25 am

3 stops58h 53m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 14 results
1
2

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

What is the cheapest time of day to fly from EYW to LON?

Find hourly flight availability from Key West to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

When flying from Key West to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 23% versus a flight at noon.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 April 29, 2025.
To help decide which airline to fly from Key West to London, see what other customers have to say about Delta, KLM and Air France. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines flying from Key West to London round-trip?

    Currently priced at $1,158, United Airlines will fly you from Key West to London and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Air France - these airlines can fly you to your destination from $1,162 and $1,270, respectively.

  • What are the cheapest airlines to fly from Key West to London one-way?

    One-way options have recently been found by users for as low as $609 on Delta. Other airlines that offer cheap prices include British Airways from $734 and KLM from $898 one-way.

  • 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.

  • What is the cheapest month to book a flight from Key West to London?

    Currently, November is the cheapest month in which you can book a flight from Key West to London (average of $661). Flying from Key West to London in June is currently the most expensive (average of $1,110). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Horley
Canterbury
Harrow
Wembley
Dover
Gatwick
Orpington
Watford
Croydon
Borehamwood
Folkestone
Ilford
Aylesbury
Sutton
Chelmsford
Brentwood

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Key West to London

See prices for flight routes from nearby airports that may be better suited for you.
Miami to Heathrow flights
Orlando to Heathrow flights
Tampa to Heathrow flights
Orlando to Gatwick flights
Miami to Gatwick flights
Miami to London City flights
Tampa to Gatwick flights
Orlando to London City flights
Tampa to London City flights
Miami to Stansted flights
Fort Lauderdale to Heathrow flights
Orlando to Edinburgh flights
Jacksonville to Heathrow flights
Orlando to Manchester flights
Orlando to Stansted flights
Fort Lauderdale to Gatwick flights
West Palm Beach to Heathrow flights
Tampa to Edinburgh flights
Jacksonville to Edinburgh flights
Jacksonville to Gatwick flights
Fort Myers to Heathrow flights
Pensacola to Heathrow flights
Jacksonville to London City flights
Miami to Luton flights
Panama City to Heathrow flights
Orlando to Luton flights
Miami to Edinburgh flights
West Palm Beach to Gatwick flights
Fort Myers to Gatwick flights
Fort Lauderdale to Edinburgh flights
Sarasota to Heathrow flights
Fort Myers to London City flights
Fort Lauderdale to London City flights
Tampa to Manchester flights
Melbourne to Heathrow flights
Valparaiso to Heathrow flights
Orlando to Southampton flights
Pensacola to London City flights
Pensacola to Gatwick flights
Daytona Beach to Heathrow flights
Gainesville to Heathrow flights
Pensacola to Edinburgh flights
Sarasota to Edinburgh flights
Miami to Manchester flights
Tampa to Stansted flights
Sarasota to Gatwick flights
Fort Lauderdale to Stansted flights
Fort Myers to Edinburgh flights
Key West to Heathrow flights
Fort Lauderdale to Manchester flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.