Cheap flights from Chicago, IL to Key West, FL

Travelers frequently search for route combinations, such as Chicago and Las Vegas, Guadalajara, Denver, Orlando, Phoenix, Mexico City, Paris, Barcelona, Tampa, Miami, London, Rome, Los Angeles, Madrid, Fort Myers, Athens, San Francisco, New York, Austin, Atlanta.

Travelers frequently search for route combinations, such as Key West and Philadelphia, Tampa, Washington, D.C., Denver, Orlando, Atlanta, Detroit, Fort Lauderdale, New York, Cleveland, Pittsburgh, Minneapolis, Boston, Raleigh, Las Vegas, Columbus, Dallas, Atlantic City, Hartford, Nashville.

Chicago is mainly served by O Hare International. But there are other airports nearby, including Chicago Midway International, Chicago Rockford International.

The main airport in Chicago is O Hare International. It is also served by Gerald R. Ford International, General Mitchell International, Dane County Regional, South Bend International, Fort Wayne International, Quad City International, General Wayne A. Downing Peoria International, Central Illinois Regional, Muskegon County, University of Illinois Willard.

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

Yes, it's possible to combine different modes of transport between Chicago and Key West thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Chicago and Key West can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.

Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.

Currently, you can fly between Chicago and Key West with United Airlines, Silver Airways.

If you don’t have specific dates for your trip between Chicago and Key West, 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.