| Donostia to Cocentaina | 326.11 mi (524.82 km) |
| Donostia to Coin | 482.44 mi (776.41 km) |
| Donostia to Colindres | 73.95 mi (119.01 km) |
| Donostia to Collado-Villalba | 212.85 mi (342.55 km) |
| Donostia to Colmenar Viejo | 205.45 mi (330.65 km) |
| Donostia to Colmenarejo | 217.48 mi (349.99 km) |
| Donostia to Conil de la Frontera | 533.63 mi (858.79 km) |
| Donostia to Consuegra | 279.57 mi (449.92 km) |
| Donostia to Corbera de Llobregat | 239.04 mi (384.69 km) |
| Donostia to Cordoba | 403.18 mi (648.86 km) |
| Donostia to Coria del Rio | 468.85 mi (754.54 km) |
| Donostia to Crevillente | 355.70 mi (572.45 km) |
| Donostia to Cuarte de Huerva | 131.67 mi (211.90 km) |
| Donostia to Cubellas | 236.93 mi (381.30 km) |
| Donostia to Cuellar | 178.24 mi (286.86 km) |
