Question 1

Why should I use momondo to find a flight deal to Key West?

Accepted Answer

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Key West.

Question 2

Can I find flights to Key West with flexible booking policies on momondo?

Accepted Answer

momondo does allow users to show only those flights to Key West which offer a flexible booking policy as well as other useful filters and features.

Question 3

How can momondo help me find flights to Key West?

Accepted Answer

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight to Key West.

Question 4

I’m not ready to book a flight to Key West right now. Can momondo alert me if prices change?

Accepted Answer

Yes. momondo can track flight prices for Key West and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

Question 5

What is there to do in Key West when it’s raining?

Accepted Answer

Users planning a flight to Key West during the months of August or September should anticipate rain. There are still things to do in Key West even when it's raining, though. Many tourists kill time during rain and storms by going to shopping centres in the area, like Duval Street.

Question 6

Which airlines fly to Key West?

Accepted Answer

There may be other airlines that fly to Key West from United Kingdom, but the most popular among our users are Virgin Atlantic and British Airways. These airlines should offer flights to Key West on a routine basis if you’re flying from one of the more popular airports in United Kingdom.

Question 7

Virgin Atlantic Flights to Key West

Accepted Answer

Virgin Atlantic is a popular choice for users travelling to Key West. It operates 2 flights every week to Key West, most often flying from Atlanta Hartsfield-Jackson. Virgin Atlantic ticket prices will depend on when and where you need to fly from - deals as low as £441 (from London Heathrow) have been found by momondo users. In 699 reviews, momondo users have rated Virgin Atlantic at an average score of 7.5/10.

Question 8

British Airways Flights to Key West

Accepted Answer

British Airways (6.7/10, 8,277 reviews) is also a popular choice for flights to Key West, with deals from as low as £491 from London Heathrow, round-trip. With 2 British Airways flights to Key West on average each week, prices can vary significantly by origin and availability.

Question 9

When did momondo last update prices for flights to Key West Airport?

Accepted Answer

Prices for flights to Key West Airport are refreshed on a daily basis.

Question 10

How many operators does momondo search for flights to Key West Airport?

Accepted Answer

As of October 2026, there are 3 operators available to choose from for flights to Key West Airport.

Question 11

How old do you have to be to fly to Key West Airport?

Accepted Answer

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Key West Airport.

Question 12

What documentation or ID do you need to fly to Key West Airport?

Accepted Answer

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.

Question 13

What is the cheapest month to fly to Key West?

Accepted Answer

If you aren’t able to travel to Key West during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of £566.

Question 14

How long does it take to fly to Key West?

Accepted Answer

The flight from United Kingdom to Key West depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from London Heathrow (a popular airport in United Kingdom) to Key West (the most popular airport in Key West), then the flight time is 28h 02m on average. If you fly from Manchester (another popular airport in United Kingdom) to Key West, then the average flight time is 26h 56m.

CHEAPEST MONTH TO FLY TO KEY WEST FROM LONDON HEATHROW AIRPORT	August	27% cheaper	Flying from London Heathrow Airport to Key West costs on average just £416 in August
MOST EXPENSIVE MONTH TO FLY TO KEY WEST FROM LONDON HEATHROW AIRPORT	October	26% more expensive	It costs about £721 for flights to Key West from London Heathrow Airport in October
MOST POPULAR MONTH TO FLY TO KEY WEST FROM LONDON HEATHROW AIRPORT	October	750% more users visited	More momondo users searched in flights to Key West from London Heathrow Airport in October than any other month

Best One-Way Price	£522
Best Round-Trip Price	£503
Fastest flight time	44h 01m

£503 Cheap flights to Key West

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight to Key West departing on 14/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from the United Kingdom to Key West

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

momondo Fare Finder

Use the filters below to find and compare flights to Key West that are best for you.

See travel insights to Key West from

Key West flights insights and trends

What is the cheapest month to fly to Key West?

How long does it take to fly to Key West?

Cheapest flights to Key West

Find the cheapest flights to Key West from your nearest city or airport

Cheap Key West flight deals and tips

Best One-Way Price

Best Round-Trip Price

Fastest flight time

Frequently asked questions about flying to Key West

Travelling to a place near Key West?

Why use momondo?

An easier way to manage your Key West trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Key West

Popular Flights to Key West

Popular routes according to searches in the past day on momondo

Popular Cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Airports servicing United Kingdom

Fly your favourite airline to Key West

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Key West

List of cabin classes available on flights landing in Key West. Availability may vary depending on flight origin and airline.

Complete your trip to Key West

Explore popular destinations other users love

According to popular flight searches on momondo this year