The Yelloway-Pioneer System (sometimes styled YellowaY-Pioneer) was a group of independently-owned intercity bus companies that operated the first transcontinental bus route in the United States.[3][4]
Proposed in early 1927,[3] the first transcontinental bus trip took place in 1928.[4] The initial route ran from Los Angeles, California to Philadelphia, Pennsylvania. In September 1928, the route was extended from Philadelphia to New York City.[3] The first Los Angeles to New York City trip was completed on September 11, 1928, covered 3,433 highway miles, and took 5 days and 14 hours to travel.[3]