Cheap flights from Ontario to Milwaukee from $203

Travelers frequently search for route combinations, such as Ontario and Guadalajara, Dallas, Seattle, Las Vegas, San Francisco, Mexico City, Houston, Denver, Honolulu, Sacramento, Chicago, Portland, Washington, D.C., New York, Toronto, Orlando, Veracruz, Cancún, Atlanta, London.

Travelers frequently search for route combinations, such as Milwaukee and Orlando, Medford, Dallas, Fort Lauderdale, Denver, Mexico City, Phoenix, Vientiane, Los Angeles, San Diego, Tampa, Boise, Las Vegas, Chicago, Tokyo, Panama, Kailua, Myrtle Beach, Wilmington, Cincinnati.

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.

The main airport in Milwaukee is General Mitchell International. It is also served by O Hare International, Chicago Midway International, Gerald R. Ford International, Appleton International, Chicago Rockford International, Dane County Regional, South Bend International, General Mitchell International, Muskegon County, Central Wisconsin.

Currently, you can fly between Ontario and Milwaukee with United Airlines, Alaska Airlines, Frontier Airlines, JetBlue Airways, WestJet.

If you don’t have specific dates for your trip between Ontario and Milwaukee, 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 Ontario and Milwaukee, 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 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

There are a number of airports in and around Milwaukee. The main one is General Mitchell International and other nearby airports include O Hare International, Chicago Midway International, Gerald R. Ford International, Appleton International, Chicago Rockford International, Dane County Regional, South Bend International, General Mitchell International, Muskegon County, Central Wisconsin.