It is used by Southern California's Metrolink commuter trains between Los Angeles Union Station and San Bernardino, California along portions of the Orange County (Los Angeles - Fullerton), 91/Perris Valley (Los Angeles - Riverside Downtown), and IEOC (Oceanside - San Bernardino) lines, Amtrak's Pacific Surfliner between Los Angeles and Fullerton, and Amtrak's Southwest Chief runs once daily in each direction on the transcon, but via the Raton Pass. Amtrak's Desert Wind also used the Southern Transcon between Los Angeles and Barstow, until its cancellation in 1997.