Dozens of kids cheered on a festively decked-out plane in Denver on Saturday when the pilot announced their destination for the day: the North Pole. For more than 30 years, United Airlines has been staging its annual “fantasy flights” to fictional North Poles at airports around the world to bring holiday cheer to children and their families. The children, some of whom have serious health struggles, were taken on a roughly 45-minute flight near the city before landing back at Denver International Airport and being towed to a hangar transformed by United Airlines employees and volunteers into the North Pole.