Shortly after the 1987 merger, American used an interim livery of painting over the AirCal titlings and replacing them with the American sans serifs.
Western Airlines had a rich history, dating back to flying air mail routes in the 1920s. Deregulation saw great expansion for the airline, with it’s network spanning from Hawaii and Alaska, to the East Coast, down to Mexico and all the way to the United Kingdom.
Western was also a player in the down-and-dirty intra-California market, alongside AirCal, PSA, and Alaska.
Western’s regional network, with hubs at Los Angeles, Salt Lake City, and Denver-Stapleton, was convenient and vast. Alas, this also made it a target for takeover. Delta would buy Western in 1986, and would fully integrate the carrier by April Fool’s Day of 1987.
Western’s legacy continues as Delta’s fortress hub at SLC. Another Western Airlines was established in 2007 with a main hub at Bellingham, Washington (between Seattle and Vancouver), but was short-lived.