Cheap flights from Key West to London from $696
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to London departing on 8/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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KLM flights from Key West to London
Our best KLM deals on Key West to London flight tickets
Delta flights from Key West to London
Our best Delta deals on Key West to London flight tickets
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How to get the cheapest flight ticket from Key West to London
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 day to depart on your flight to London?
The cheapest day to depart from Key West to London is on a Thursday. Travelers who choose to depart for London on a Thursday will often find tickets for as low as $751. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $1,117. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.
What is the cheapest time of day to depart on your flight to London?
Flying to London from Key West in the morning is the least expensive time of day to depart. momondo users have found prices as low as $724 when looking at flights departing in the morning. Flights to London are more costly at noon, with an average ticket price of $934. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
When to book flights from Key West to London
Cheap Key West to London (EYW to LON) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Key West to London
How far is Key West to London by plane?
Key West and London are 4555.0 mi apart from one another. Typically, this will take 11h 50m by plane in normal conditions.
When did momondo last update prices for flights from Key West Airport to London?
Prices for flights from Key West Airport to London are refreshed on a daily basis.
How many operators does momondo search for flights from Key West Airport to London?
As of June 2025, there is 1 operator available to choose from for flights from Key West Airport to London.
How old do you have to be to fly from Key West Airport to London?
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 Key West Airport to London.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Key West to London?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Key West to London is American Airlines (100% of total bookings).
Best airlines flying from Key West to London
Compare and see reviews for airlines that fly from Key West to London with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $664 | Free Cancellation | Rating 7.2 10,000 reviews |
Traveling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Key West to London?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Key West to London. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Key West to London with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to London from Key West with this policy.
How can momondo help me find flights from Key West to London?
Once you have performed a search for Key West to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Key West to London right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to London from Key West. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.