| Opera to Coin | 942.47 mi (1,516.76 km) |
| Opera to Colindres | 639.48 mi (1,029.14 km) |
| Opera to Collado-Villalba | 743.20 mi (1,196.06 km) |
| Opera to Colmenar Viejo | 731.36 mi (1,177.01 km) |
| Opera to Colmenarejo | 746.14 mi (1,200.80 km) |
| Opera to Conil de la Frontera | 1,015.21 mi (1,633.83 km) |
| Opera to Consuegra | 770.06 mi (1,239.29 km) |
| Opera to Corbera de Llobregat | 456.71 mi (735.00 km) |
| Opera to Cordoba | 887.24 mi (1,427.87 km) |
| Opera to Coria del Rio | 967.19 mi (1,556.54 km) |
| Opera to Crevillente | 712.79 mi (1,147.12 km) |
| Opera to Cuarte de Huerva | 571.26 mi (919.36 km) |
| Opera to Cubellas | 476.13 mi (766.25 km) |
| Opera to Cuellar | 731.78 mi (1,177.69 km) |
| Opera to Cuenca | 682.97 mi (1,099.13 km) |
