Cheap flights from Wilmington, DE to Ontario, CA

Travelers frequently search for route combinations, such as Wilmington and New York, Orlando, Las Vegas, Denver, Chicago, Miami, Los Angeles, Atlanta, Mexico City, Bogotá, Dallas, Phoenix, Philadelphia, San Francisco, Cancún, Houston, San Juan, Washington, D.C., Dhaka, Fort Lauderdale.

Travelers frequently search for route combinations, such as Ontario and London, New York, Bangkok, San Francisco, Denver, Sacramento, Taipei, Manila, Toronto, Calgary, Seattle, Las Vegas, San Jose, Orlando, Houston, Macau, Los Angeles, Washington, D.C., Manchester, Detroit.

The main airport in Wilmington is New Castle Airport. It is also served by Newark Liberty International, Philadelphia International, Washington Dulles International, LaGuardia, Baltimore–Washington International, New York Stewart International Airport, Ronald Reagan Washington National, Long Island MacArthur, Trenton–Mercer, Lehigh Valley International.

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

Yes, it's possible to combine different modes of transport between Wilmington and Ontario thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Wilmington and Ontario 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 Wilmington and Ontario with Linear Air, Frontier Airlines, United Airlines, Delta Air Lines, American Airlines.

If you don’t have specific dates for your trip between Wilmington 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 Wilmington 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.