Pacific Western Airlines was an airline that operated throughout western Canada and around the world from the 1950's through the 1980's.

The airline went through several iterations, originally consisting of small float planes in the 1950's, evolving to include a varied fleet of Convair 640 's and DC-4's into the 1960's. The airline also operated several 707 aircraft that served in both a passenger and cargo capacity. Along with a number of Lockheed L-100 (the civilian version of the C-130), PWA became a major player in the world air cargo business. The airline expanded to include a variety of aircraft, including Boeing 737-200s, Boeing 727s, and two Boeing 767-200 aircraft.

In the early 1980's, the fleet was pared down to only 737-200 aircraft and became one of the first innovative airlines on the west coast of Canada, servicing communities throughout western Canada and across the country.

In 1987, PWA Corp, the parent corporation of Pacific Western Airlines, purchased Canadian Pacific (CP) Airlines in its entirety, to form Canadian Airlines International. Wardair, another Canadian airline, was later purchased by PWA, resulting in only two major airlines in Canada: Canadian Airlines International and Air Canada. PWA and later Canadian Airlines were based in Calgary. In 2001, Air Canada merged with Canadian Airlines.