£240 Cheap Flights from Key West (EYW) to London (LHR)

View £240 flight on Sun, 28 Mar 2027Opens in a new window

Popular airlines from Key West Intl. Airport (EYW) to Heathrow Airport (LHR)

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Cheap Flights from Key West (EYW) to London (LHR)

Prices were available within the past 7 days and start at £240 for one-way flights and £604 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Virgin Atlantic
Sat, 12 Sept - Wed, 23 Sept
EYW
Key West
LHR
London
£604 Return, found 5 days ago
£604
Return
found 5 days ago
Select Virgin Atlantic flight, departing Sat, 12 Sept from Key West to London, returning Wed, 23 Sept, priced at £604 found 5 days ago
Air France
Sat, 12 Sept - Wed, 23 Sept
EYW
Key West
LHR
London
£608 Return, found 5 days ago
£608
Return
found 5 days ago
Select Air France flight, departing Sat, 12 Sept from Key West to London, returning Wed, 23 Sept, priced at £608 found 5 days ago
Virgin Atlantic
Sat, 12 Sept - Wed, 23 Sept
EYW
Key West
LHR
London
£623 Return, found 5 days ago
£623
Return
found 5 days ago
Select Virgin Atlantic flight, departing Sat, 12 Sept from Key West to London, returning Wed, 23 Sept, priced at £623 found 5 days ago
Air France
Sat, 12 Sept - Wed, 23 Sept
EYW
Key West
LHR
London
£628 Return, found 5 days ago
£628
Return
found 5 days ago
Select Air France flight, departing Sat, 12 Sept from Key West to London, returning Wed, 23 Sept, priced at £628 found 5 days ago
Virgin Atlantic
Sat, 12 Sept - Wed, 23 Sept
EYW
Key West
LHR
London
£638 Return, found 5 days ago
£638
Return
found 5 days ago
Select Virgin Atlantic flight, departing Sat, 12 Sept from Key West to London, returning Wed, 23 Sept, priced at £638 found 5 days ago
American Airlines
Sat, 12 Sept - Wed, 23 Sept
EYW
Key West
LHR
London
£641 Return, found 5 days ago
£641
Return
found 5 days ago
Select American Airlines flight, departing Sat, 12 Sept from Key West to London, returning Wed, 23 Sept, priced at £641 found 5 days ago
Virgin Atlantic
Sat, 12 Sept - Wed, 23 Sept
EYW
Key West
LHR
London
£645 Return, found 5 days ago
£645
Return
found 5 days ago
Select Virgin Atlantic flight, departing Sat, 12 Sept from Key West to London, returning Wed, 23 Sept, priced at £645 found 5 days ago
Air France
Sat, 12 Sept - Wed, 23 Sept
EYW
Key West
LHR
London
£650 Return, found 5 days ago
£650
Return
found 5 days ago
Select Air France flight, departing Sat, 12 Sept from Key West to London, returning Wed, 23 Sept, priced at £650 found 5 days ago
KLM
Sat, 12 Sept - Wed, 23 Sept
EYW
Key West
LHR
London
£658 Return, found 5 days ago
£658
Return
found 5 days ago
Select KLM flight, departing Sat, 12 Sept from Key West to London, returning Wed, 23 Sept, priced at £658 found 5 days ago
British Airways
Sat, 12 Sept - Wed, 23 Sept
EYW
Key West
LHR
London
£700 Return, found 5 days ago
£700
Return
found 5 days ago
Select British Airways flight, departing Sat, 12 Sept from Key West to London, returning Wed, 23 Sept, priced at £700 found 5 days ago

Frequently asked questions

How do I find cheap flights from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow)?
To find a cheap flight from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow)?
There are approximately 16 connecting flights per day from Key West Intl. (EYW) to London Heathrow (LHR). Some common connection points include Hartsfield-Jackson Atlanta Intl. (ATL), Liberty Intl. (EWR), and Miami Intl. (MIA).
What is the earliest flight from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow)?
The earliest flight from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow) typically departs at approximately 7:00 AM local time, operated by Delta. This is a seasonal service active in August. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow)?
For flights from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow), you'll typically find the most options on a Wednesday, with around 33 flights available. This gives you a good selection for your travel plans. Major airlines on this route include American Airlines, Delta Air Lines, and United Airlines. Flight schedules are consistent throughout the week, so you'll have plenty of options regardless of your travel day.
What are the most popular departure times for flights from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow) are in the afternoon, from 12pm to 3pm. Approximately 40% of passengers prefer this time window. Many major carriers, including American Airlines, British Airways and Delta, offer flights during this window. These times work well if you prefer to travel during the day, allowing for a relaxed morning before your flight.
How long does it take to fly from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow)?
A flight from EYW to LHR with a layover takes around 12 hours, with the route covering approximately 4,543 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow)?
Select the "Business class" and "First class" filters when looking for EYW to LHR flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from Key West Intl. (EYW)?
From Key West Intl. (EYW), you can fly directly into Heathrow (LHR) to reach London. Some flights may connect through major hubs like Hartsfield-Jackson Atlanta Intl. (ATL), Miami Intl. (MIA), Liberty Intl. (EWR) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow) flight and hotel package?
Securing a Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow)?
If you booked your Key West, FL (EYW-Key West Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Key West Intl.
Destination airport
Heathrow
Return price
£604
Distance
7268 km

Book with confidence

Compare flights from Key West to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Key West to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Key West Intl. to Heathrow.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Key West Intl. (EYW) to Heathrow (LHR)

The easiest way to view the best deals on flights from Key West to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Key West Intl. to Heathrow start at just £604 and range up to £700.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Key West and London
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Key West to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Key West Intl. to Heathrow for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Key West to London easily and book with confidence

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*Available to Expedia members.