sentences:  Originally based at Willow Run Airport in Ypsilanti, Michigan, the company moved in 2013 to Orlando Sanford International Airport.In September, 2015, National announced scheduled passenger service from its hub at Orlando Sanford International Airport using their two active 757s.The announced destinations include St. John's International Airport in St. John's, Newfoundland and Labrador, Canada, Windsor International Airport in Windsor, Ontario, Canada, Vancouver International Airport in Vancouver, British Columbia, Canada, and Luis Muñoz Marín International Airport in San Juan, Puerto Rico.