The “sound of round” roars over Skagit Valley on Saturday, May 25 as Heritage Flight Museum showcases vintage military aircraft from WWII onward at the May Fly Day. See and hear our historic fleet in action, enjoy Apollo 8 exhibits and kids activities, grab a meal at the pizza truck and enjoy a fun family day out at Skagit Regional Airport. Hours: 10 a.m. to 4 p.m. Flying is subject to unexpected change; check heritageflight.org for the latest information or call at least one day ahead of the event: 360-424-5151 extension 107.  Admission: $12/Adults, $10/Seniors, $5/Military and kids 5-17, FREE Members and kids under 5.