| Onate to Carmona | 420.27 mi (676.36 km) |
| Onate to Cartagena | 382.92 mi (616.25 km) |
| Onate to Cartama | 452.25 mi (727.83 km) |
| Onate to Cartaya | 469.18 mi (755.07 km) |
| Onate to Caspe | 174.29 mi (280.49 km) |
| Onate to Cassa de la Selva | 280.98 mi (452.19 km) |
| Onate to Castalla | 319.82 mi (514.71 km) |
| Onate to Castellbisbal | 249.30 mi (401.21 km) |
| Onate to Castelldefels | 255.52 mi (411.21 km) |
| Onate to Castello de Ampurias | 284.12 mi (457.25 km) |
| Onate to Castellon de la Plana | 244.16 mi (392.93 km) |
| Onate to Castilleja de la Cuesta | 434.80 mi (699.74 km) |
| Onate to Catarroja | 271.75 mi (437.34 km) |
| Onate to Catral | 347.19 mi (558.74 km) |
| Onate to Caudete | 308.26 mi (496.09 km) |
