NORTHWEST AIRLINK (OPERATED BY EXPRESS AIRLINES II) (NW/E7)
Aircraft Operated:
British Aerospace Jetstream 31, Saab 340
Cities Served:
Mason City, Sioux City
UNITED EXPRESS (OPERATED BY GREAT LAKES AVIATION) (UA/ZK)
Aircraft Operated:
Beech 1900
Cities Served:
Mason City, Waterloo