November 1, 1982
Maps generated by the Great Circle Mapper - copyright © Karl L. Swartz.
American
Central
Airlines
Cadillac
Manistee
Marshfield
Wisconsin Rapids
Sheboygan
Chicago
O'Hare
Beloit/
Janesville
Dubuque
Clinton
Waterloo
Minneapolis/
Saint Paul
Sioux
City
Omaha
Des Moines
Ottumwa