Alaska Airlines has launched daily nonstop service between Seattle-Tacoma International Airport and John Glenn Columbus International Airport, the first route for the carrier to Ohio. It’s the only nonstop flight between the two cities. From Seattle, travelers can continue to other West Coast cities, or earn miles flying on a Global Partner. By September, according to the airline, Alaska Global Partners will offer more flights per week out of Seattle than any other airline or alliance group. New routes will serve Tokyo, Hong Kong and Singapore. Columbus becomes the 91st nonstop destination served from Alaska's  Seattle hub. Flights depart Seattle at 9:45 a.m. and arrive in Columbus at 5:10 p.m.; they leave Columbus at 6:15 p.m. and arrive in Seattle at 8:15 p.m.