Cheap flights from Louisville to Ontario from $235

Travelers frequently search for route combinations, such as Louisville and Fort Lauderdale, Los Angeles, Orlando, Charleston, Guatemala City, San Francisco, Fort Myers, Tampa, New York, San Diego, Chicago, Mashhad, Raleigh, Santo Domingo, New Orleans, Paris, Porto, London, Sarasota, Erie.

Travelers frequently search for route combinations, such as Ontario and San Francisco, Las Vegas, Dallas, Guadalajara, Seattle, Sacramento, Houston, Portland, Denver, Atlanta, Chicago, New York, Los Angeles, Mexico City, Washington, D.C., Rome, Orlando, St. Louis, Columbus, Fargo.

The main airport in Louisville is Louisville International. It is also served by Cincinnati/Northern Kentucky International, Indianapolis International, Louisville International, Blue Grass, Dayton International, Evansville Regional, Owensboro–Daviess County Regional.

The main airport in Ontario is Ontario International. It is also served by Tijuana International, San Diego International, John Wayne, Ontario International, Hollywood Burbank, Palm Springs International, Santa Barbara Municipal, Long Beach, McClellan–Palomar, Imperial County.

Currently, you can fly between Louisville and Ontario with Frontier Airlines, United Airlines, BREEZE, Allegiant Air, Alaska Airlines.

If you don’t have specific dates for your trip between Louisville and Ontario, 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 Louisville and Ontario, 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 Louisville. The main one is Louisville International and other nearby airports include Cincinnati/Northern Kentucky International, Indianapolis International, Louisville International, Blue Grass, Dayton International, Evansville Regional, Owensboro–Daviess County Regional

There are a number of airports in and around Ontario. The main one is Ontario International and other nearby airports include Tijuana International, San Diego International, John Wayne, Ontario International, Hollywood Burbank, Palm Springs International, Santa Barbara Municipal, Long Beach, McClellan–Palomar, Imperial County.