Wisconsin Central continued its second year of scheduled service to the upper midwest using the six Lockheed 10A airliners brought on line the previous year. Navigational upgrades were completed on the aircraft as well as installation of the remaining "H" type radio beacons at under equipped stations throughout the system. The airline could now operate day/night and during low ceiling/visibility conditions.

Additional stations for the year were Brainerd, Minnesota for the March schedule with flights to Minneapolis/St Paul via St Cloud and north to Hibbing/Chisholm and new destinations to Upper Michigan . Green Bay was the connection point to the WIS route system with service starting in December to Menominee/Marinette, Iron Mountain, Marquette and Houghton/Hancock, Michigan. This was known at the airline as the inter-peninsula service.