| Seia to Cartagena | 409.95 mi (659.75 km) |
| Seia to Cartama | 305.35 mi (491.41 km) |
| Seia to Cartaya | 218.89 mi (352.27 km) |
| Seia to Caspe | 404.71 mi (651.32 km) |
| Seia to Cassa de la Selva | 559.10 mi (899.78 km) |
| Seia to Castalla | 395.34 mi (636.25 km) |
| Seia to Castellbisbal | 510.34 mi (821.32 km) |
| Seia to Castelldefels | 509.05 mi (819.24 km) |
| Seia to Castello de Ampurias | 572.85 mi (921.92 km) |
| Seia to Castellon de la Plana | 405.72 mi (652.95 km) |
| Seia to Castilleja de la Cuesta | 227.97 mi (366.88 km) |
| Seia to Catarroja | 393.00 mi (632.48 km) |
| Seia to Catral | 400.45 mi (644.46 km) |
| Seia to Caudete | 376.70 mi (606.24 km) |
| Seia to Cehegin | 354.38 mi (570.31 km) |
