Cheap flights from Key West to Saint Lucia from $397

Travelers frequently search for route combinations, such as Key West and Orlando, Tampa, Fort Lauderdale, Cancún, Asheville, Cincinnati, Tallahassee, Pittsburgh, Monterrey, Grand Cayman, Atlanta, New York, Kherson, Istanbul, Budapest, McAllen, Santorini, Johannesburg, Tulsa, Venice.

Travelers frequently search for route combinations, such as Saint Lucia and Minneapolis, New York, Bridgetown, Saint Vincent, Saint Andrew Parish, Saint Joseph Parish, Toronto, St George's, Houston, Albuquerque, Port of Spain, Fargo, San Diego, Charlotte, Trenton, Missoula, Raleigh, Seattle, Destin, Paris.

The main airport in Key West is Key West International. It is also served by Miami International, Key West International.

Currently, you can fly between Key West and Saint Lucia with JetBlue Airways, BREEZE, Allegiant Air, Caribbean Airlines, interCaribbean Airways.

If you don’t have specific dates for your trip between Key West and Saint Lucia, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Traveling between Key West and Saint Lucia, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.

There are a number of airports in and around Key West. The main one is Key West International and other nearby airports include Miami International, Key West International

This depends on the airline’s flight schedule. You can easily select your preferred departure time when you search on our website or mobile app. Choose the time of day you wish to depart from Key West, such as morning, afternoon, evening, or night, or select the exact hours for departure.

This depends on the airline’s flight schedule. You can easily select your preferred arrival time when you search on our website or mobile app. Choose the time of day you wish to arrive at Saint Lucia, such as morning, afternoon, evening, or night, or select the exact hours for arrival.