The author said a $349 unlimited flight pass became the graduation gift that keeps on giving to her teen son. Courtesy of Chris Rosenberg. Our son graduated from high school at 17 and isn't planning to attend college right now. We wanted to give him a gift that encouraged independence in a way that fit his life. An unlimited flight pass has helped teach him many life skills in just a few months. Our son graduated from high school early by finishing online and isn't planning to attend college