| Thorne to Carmona | 1,137.37 mi (1,830.42 km) |
| Thorne to Cartagena | 1,106.07 mi (1,780.04 km) |
| Thorne to Cartama | 1,180.69 mi (1,900.14 km) |
| Thorne to Cartaya | 1,166.10 mi (1,876.66 km) |
| Thorne to Caspe | 856.10 mi (1,377.76 km) |
| Thorne to Cassa de la Selva | 828.73 mi (1,333.72 km) |
| Thorne to Castalla | 1,037.29 mi (1,669.36 km) |
| Thorne to Castellbisbal | 849.17 mi (1,366.60 km) |
| Thorne to Castelldefels | 862.58 mi (1,388.19 km) |
| Thorne to Castello de Ampurias | 805.80 mi (1,296.80 km) |
| Thorne to Castellon de la Plana | 942.41 mi (1,516.66 km) |
| Thorne to Castilleja de la Cuesta | 1,147.10 mi (1,846.08 km) |
| Thorne to Catarroja | 981.85 mi (1,580.14 km) |
| Thorne to Catral | 1,067.44 mi (1,717.88 km) |
| Thorne to Caudete | 1,029.76 mi (1,657.24 km) |
