American Eagle, the regional affiliate of American Airlines, today announced it was selected by the United States Department of Transportation (DOT) to begin daily round-trip flights between Chicago O'Hare International Airport and two new destinations in Iowa – Sioux Gateway Airport in Sioux City and Waterloo Regional Airport in Waterloo . As part of the Essential Air Service program (EAS), Eagle plans to begin service in spring 2012, operating the routes with 44-seat and 50-seat Embraer jets.