Cheap flights from Chicago to Great Falls from $378

Travelers frequently search for route combinations, such as Chicago and Mexico City, Guadalajara, Morelia, New York, León, Orlando, Las Vegas, Dallas, Houston, Tampa, Los Angeles, Miami, Phoenix, Denver, Monterrey, Cancún, Istanbul, Puerto Vallarta, Atlanta, Calgary.

Travelers frequently search for route combinations, such as Great Falls and New Orleans, Las Vegas, Fort Lauderdale, Bellingham, New York, Knoxville, Stockton, Dallas, Austin, San Francisco, Pittsburgh, Atlanta, Albuquerque, Palm Springs, Raleigh, Little Rock, Orlando, Cedar Rapids, Boston, San Antonio.

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, Dane County Regional, South Bend International, General Mitchell International, Fort Wayne International, General Wayne A. Downing Peoria International, Quad City International, Central Illinois Regional, Kalamazoo/Battle Creek International, Muskegon County.

The main airport in Great Falls is Great Falls International. It is also served by Bozeman Yellowstone International, Missoula International, Great Falls International, Havre City–County, Helena Regional, Bert Mooney.

Currently, you can fly between Chicago and Great Falls with Allegiant Air, Alaska Airlines, Frontier Airlines, United Airlines, WestJet.

If you don’t have specific dates for your trip between Chicago and Great Falls, 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 Chicago and Great Falls, 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 Chicago. The main one is O Hare International and other nearby airports include Gerald R. Ford International, Dane County Regional, South Bend International, General Mitchell International, Fort Wayne International, General Wayne A. Downing Peoria International, Quad City International, Central Illinois Regional, Kalamazoo/Battle Creek International, Muskegon County