Airports Serving Dayton 8 of 8 Matching Airports Hillsboro Hillsboro, OR21.3 miles McNary Fld Salem, OR21.7 miles Portland Intl7000 NE Airport Way Portland, OR 9721834.7 miles Corvallis Mncpl Corvallis, OR50.9 miles Newport Mncpl Newport, OR65.2 miles Astoria Astoria, OR75.5 miles Eugene Mncpl28855 Lockheed Dr Eugene, OR 9740276.3 miles The Dalles Mncpl The Dalles, OR96.7 miles