they could be acquired at a later date, the cost would be several times that afforded by prompt action. A Pacific Overseas Airlines flight from Shanghai arrived at Ontario on 18 May 1946, "which inaugurated regular round-trip air passenger air service between the United States and the Orient." In 1949, Western Airlines began scheduled flights; in 1955, Bonanza Air Lines flights started. Western and Bonanza nonstops did not reach beyond Las Vegas. In 1962, Western began nonstop flights to San Francisco (one Electra daily). In 1967, Bonanza began nonstop F27 flights to Phoenix. Ontario and Los Angeles entered into a joint-powers agreement, making Ontario International Airport part of the Los Angeles regional airports system in 1967. In 1968, the airport had its first scheduled jet flights. In 1969, Continental Airlines started Boeing 720B nonstops to Denver and Chicago; Air California started Boeing 737 flights to San Jose; Pacific Southwest Airlines started San Francisco flights; and Western began 737 nonstops to Sacramento and Salt Lake City. In 1970, United Airlines started a nonstop to Chicago and American started flights to Dallas (and Chicago, for a short time). In September 1986, Ontario hosted the Concorde supersonic airliner during a promotional round-the-world flight. In 1981, a second east–west runway, 26L/8R, was built, necessitating the removal of the old NE-SW runway 4/22. Remnants of the 4/22 runway are visible in the present-day taxiways. With the completion of the new runway, the existing runway 25/7 became 26R/8L. In 1985, the city of Los Angeles acquired Ontario International Airport outright from the city of Ontario. In 1987, Runway 26R/8L was extended to the east to bring the two runway thresholds side by side, so aircraft would be higher over neighborhoods. 26R/8L became the main departing runway and 26L/8R the main arrival runway. For a number of years, the airport operated alongside Ontario Air National Guard Station, which was closed as a result of the 1995 Base Realignment and Closure Commission. In 1998, the new and larger airport terminal opened, designed by DMJM Aviation. Two older terminals, west of the current terminal, the main terminal and a small terminal were discontinued when the new Terminal 2 and Terminal 4 facilities were opened. The old terminals currently house the administration and the USO. In 2005 and 2006, runway 26R/8L was repaved and strengthened, and received storm drains and better runway lighting, and additional improvements to taxiway intersections were