Cheap flights from London Heathrow Airport to Key West from £468
This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Key West departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London Heathrow Airport to Key West
Cheap return flights
American Airlines flights from London Heathrow Airport to Key West
Our best American Airlines deals on London Heathrow Airport to Key West flight tickets
British Airways flights from London Heathrow Airport to Key West
Our best British Airways deals on London Heathrow Airport to Key West flight tickets
See travel insights to Key West from
How to get the cheapest flight ticket from London Heathrow Airport to Key West
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Key West?
If you aren’t able to travel to Key West during the month of March, then flying in September is also cheap. Prices for this month can be found on momondo for an average of £513.
What is the cheapest day to depart on your flight to Key West?
On average, the least expensive day to fly to Key West from London Heathrow Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £527. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Key West on Thursday is £658.
When to book flights from London Heathrow Airport to Key West
Cheap London Heathrow Airport to Key West (LHR to EYW) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Key West
How far is London Heathrow to Key West by plane?
The distance between London Heathrow and Key West is about 4541.3 mi. A reasonable flight in good conditions will take 13h 14m.
When did momondo last update prices for flights from London Heathrow Airport to Key West Airport?
Prices for flights from London Heathrow Airport to Key West Airport are refreshed on a daily basis.
How many operators does momondo search for flights from London Heathrow Airport to Key West Airport?
The number of operators available for flights from London Heathrow Airport to Key West Airport is 3 as of April 2025.
How old do you have to be to fly from London Heathrow Airport to Key West Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The travel and health documents you'll need for your trip to Key West Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London Heathrow Airport to Key West?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to Key West is Virgin Atlantic (44% of total bookings). The next most popular airlines are British Airways (41%) and Finnair (15%).
Best airlines flying from London Heathrow Airport to Key West
Compare and see reviews for airlines that fly from London Heathrow Airport to Key West with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £433 | Free Cancellation | Rating 7.4 642 reviews | |||
| PriceFrom £453 | Free Cancellation | Rating 6.6 6,815 reviews | |||
| PriceFrom £535 | Free Cancellation | Rating 7.6 1,272 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to Key West?
Finding the right flight to Key West from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Key West quick and easy, saving you time and money.
Can I find flights from London to Key West with flexible booking policies on momondo?
momondo does allow users to show only those flights to Key West from London which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from London to Key West?
Once all potential London to Key West flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from London to Key West right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of London to Key West flights. All you need is a valid email address and we will do the rest; it is that quick and easy.