Lethbridge became an important centre in the development of
the aviation industry in Alberta when Stubb Ross, a
local pilot, established Lethbridge Air Service in May 1966. Shortly thereafter, the name Lethbridge Air Service was changed to Time Air.
Time Air was a commuter air service which primarily used
a BEECH 18, Short 330 and Short 360 aircraft. As Time Air
expanded, providing air service from smaller communities to larger urban centres,
an F-27 Fokker and a Dash-8 were purchased. Other fleet used by Time Air included: DeHavilland Canada (DHC) Twin Otter, Dash 7, (DHC) Dash 8-100, Convair 580, Convair 640, Fokker F-28 JET, and a Dash 8-300.
Time Air was the launch customer of both the Shorts 330 and the DeHavilland Canada (DHC) Dash 8-300. As the 1980s approached,
Time Air played an integral role as a feeder air service to
larger airlines. Time Air in the early 1990s was Canada's LARGEST regional airline when it acquired Southern Frontier Airlines and North Canada Air.