Ciudad Frontera is located in Saltillo city, Mexico at the 26.9281, -101.4521 coordinates. Distance from Ciudad Frontera to other cities. are listed below, click on the city name to find distance between. Distance from Ciudad Frontera to Torreon 249 km, to Monclova 4 km, to Piedras Negras 217 km. The green marker indicates the location of Ciudad Frontera.