The cheapest times to fly from EYW to LHR are

  • January 8th to April 1st
  • April 16th to May 27th
  • October 8th to December 9th (except the week of November 19th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from EYW to LHR is mid May. Prices can be as high as $1724 for Saturday flights during late June, or as low as $708 for Tuesday flights around mid May.


When to Fly to London

Flying from Key West, FL (EYW) to London (LHR) will usually cost between $787 to $1407 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid May with an average ticket price of $764. Due to high demand the most expensive time to fly is late June, with an average price of $1528. Planning your trip to low-cost times can easily save you $764 on economy flights and even more on first-class flights. Generally, any price below $928 can be considered a good price for a round-trip EYW to LHR flight.

See below for a graph of average weekly prices for the EYW to LHR route. All prices are for round-trip tickets in USD.

EYW to LHR Flight Prices

Compared to other flights, the EYW to LHR flight is priced close to the average and costs slightly more than the average flight leaving from Key West. The average price per mile (for a direct flight) is $0.13, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $170 (16%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $917. Return trip prices are from the LHR to EYW flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from EYW to LHR can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 9 hour 9 minutes may not be realistic.


Flight Hacking EYW to LHR

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from EYW to LHR — but Champion Traveler does!

Hack #1: Fort Lauderdale, FL (EYW > FLL > LHR)

  • Price for both tickets: $637
  • Average savings: $292 (31.41%)

See EYW to FLL flights

Hack #2: Orlando, FL (EYW > MCO > LHR)

  • Price for both tickets: $644
  • Average savings: $284 (30.6%)

See EYW to MCO flights

Hack #3: Tampa, FL (EYW > TPA > LHR)

  • Price for both tickets: $695
  • Average savings: $234 (25.16%)

See EYW to TPA flights


Flight Questions Answered

Still have questions about flying from EYW to LHR? We’ve got answers.

Which airlines fly this route?

You can find 9 major airlines flying this route most often: Air France, American, British Airways, Delta, Finnair, Iberia, KLM, United, Virgin Atlantic, and potentially more during busy seasons.

How far away is it from London Heathrow Airport to Key West International Airport?

The distance between the two airports is roughly 4542 miles or 7310 kilometers.

How long does it take to fly from EYW to LHR?

The real-world flight time for a nonstop EYW to LHR flight is about 9 hour 9 minutes.

How many flights go between Key West, FL and London?

It depends on the day of the week and the date, but a typical day might have around 11 available flights from EYW to LHR.


Airport Location Info


Departing Airport

Origination code EYW
Origination airport name Key West International Airport
City Key West, FL
Country the United States
Latitude 24.6
Longitude -81.8

Return Airport

Destination code LHR
Destination airport name London Heathrow Airport
City London
Country the United Kingdom
Latitude 51.5
Longitude -0.5


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.