 Great Lakes was operating Beechcraft 1900C turboprops on its nonstop service to Lansing, MI, and Springfield, IL and was also flying one stop direct service to Quincy, IL.Trans States served Springfield, IL nonstop with Swearingen Metro III propjets.Blade Helicopters was operating Eurocopter AS350 "AStar" turbine powered helicopters on a high frequency shuttle schedule with 39 flights every weekday to Chicago O'Hare Airport and 12 flights every weekday to Chicago Midway Airport.