North Pacific Airlines North Pacific Airlines North Pacific Airlines was a commuter air carrier formed in 1987 which operated scheduled passenger service on behalf United Airlines via a code sharing agreement as an United Express carrier initially from the Seattle–Tacoma International Airport (SEA) to three destinations in Washington state and also to Portland, Oregon. By 1989, the airline had expanded its route network and was serving fifteen destinations located in Idaho, Montana, Oregon and Washington state (see destination list below). In 1991, the airline, which was owned by WestAir Holding, Inc., was merged with WestAir Commuter Airlines which operated flights in California and
Washington State Route 529 1913, the Pacific Highway was added to the state highway system and used Broadway (former SR 529) in Everett and State Avenue in Marysville to travel between Seattle and the Canada–US border. The Pacific Highway between Everett and Marysville, named the Vernon Road, was paved in 1916 and paid by a county road bond issue. The highway was later signed as in 1923, which became the Washington segment of (US 99) during the creation of the United States Numbered Highways in 1926. Since the bridges over the Snohomish River delta weren't complete at the time of planning, US 99 used