Polar Express | Grand Canyon Railway & Hotel During Polar Express, the restaurant will be open for dinner from 3:30 p.m to 9:30 p.m. Breakfast will be open at 6:30 a.m. to 10:00 a.m. The full buffet is available during Polar Express nights, as well as special desserts made just for the holidays! No alcoholic beverages are permitted aboard The Polar Express.