In 1946, a plebiscite was held which authorized the city of Kelowna to purchase the 320-acre Dickson Ranch for $20,000. The airport was opened in 1947 with a 3,000 foot long grass airstrip and a small terminal. Commercial service first began in 1958 by Canadian Pacific Airlines to Vancouver. In 1960, the runway was paved and extended to 5,350 feet. Through the 1960s and 1970s the airport continued to be expanded with a new terminal building, an air traffic control tower, and an onsite weather office. From the late 1960s to the mid 1980s, Pacific Western Airlines was the primary passenger air carrier serving the airport with Boeing 737-200 jetliners on nonstop and direct flights between Kelowna and Calgary, Edmonton, Vancouver and other small cities in British Columbia with the airline also operating Convair 640 and de Havilland Canada DHC-6 Twin Otter turboprops as well as Douglas DC-3 and Piper Navajo prop aircraft on regional flights. By 1985, Pacific Western had become an all-jet airline and was operating up to sixteen departures a day with the Boeing 737-200 from Kelowna including direct, no change of plane service to Toronto. Throughout the 1980s and 1990s commercial and cargo traffic increased necessitating more than $10 million of investment in upgrades to the terminal building, runway and airline operating facilities.