champaign airport in a sentence

1. It is the largest airport between the Chicago Midway Airport and the Champaign Airport.
2. But the president's day in the heartland was ruffled when his flight to La Crosse, Wis ., where a crowd of thousands awaited him at an outdoor rally, was delayed for hours as his plane became stuck in the mud at the Champaign airport.
3. It's difficult to find champaign airport in a sentence.