North Pacific Airlines
 North Pacific Airlines was a small regional airline formed in 1987 flying for United Airlines under the United Express brand name from the Seattle–Tacoma International Airport to three Eastern Washington destinations and Portland Oregon. By 1991 the airline which was owned by WestAir Holdings had been merged with WestAir Commuter Airlines still under the United Express banner. WestAir Commuter Airlines was another member of the WestAir Holdings corporation.