| Smolyan to Cervello | 1,173.64 mi (1,888.79 km) |
| Smolyan to Cervera | 1,206.33 mi (1,941.40 km) |
| Smolyan to Ceuti | 1,393.70 mi (2,242.94 km) |
| Smolyan to Cheste | 1,336.08 mi (2,150.21 km) |
| Smolyan to Chiclana de la Frontera | 1,685.03 mi (2,711.79 km) |
| Smolyan to Chipiona | 1,691.68 mi (2,722.50 km) |
| Smolyan to Chiva | 1,338.05 mi (2,153.38 km) |
| Smolyan to Churriana de la Vega | 1,537.72 mi (2,474.72 km) |
| Smolyan to Ciempozuelos | 1,476.18 mi (2,375.68 km) |
| Smolyan to Cieza | 1,397.86 mi (2,249.63 km) |
| Smolyan to Cisterniga | 1,510.74 mi (2,431.30 km) |
| Smolyan to Ciudad de Melilla | 1,550.86 mi (2,495.86 km) |
| Smolyan to Ciudad Real | 1,512.00 mi (2,433.32 km) |
| Smolyan to Ciudad-Rodrigo | 1,619.28 mi (2,605.98 km) |
| Smolyan to Cocentaina | 1,337.01 mi (2,151.71 km) |
