The railway's extensive network was also home to a number of regional services. These generally couldn't boast of the size or panache of the transcontinental trains, but built up enviable reputations of their own nonetheless. Of these, the Chicago-Texas trains were the most famous and impressive. The "San Diegans," which ran from Los Angeles to San Diego, were the most popular and durable, becoming to the Santa Fe what New York City-Philadelphia trains were to the Pennsylvania Railroad. But Santa Fe flyers also served Tulsa, Oklahoma, El Paso, Texas, Phoenix, Arizona (the "Hassayampa Flyer"), and Denver, Colorado, among other cities not on their main line.