| Illingen to Cartagena | 906.66 mi (1,459.12 km) |
| Illingen to Cartama | 1,052.65 mi (1,694.08 km) |
| Illingen to Cartaya | 1,095.21 mi (1,762.57 km) |
| Illingen to Caspe | 658.97 mi (1,060.51 km) |
| Illingen to Cassa de la Selva | 555.08 mi (893.31 km) |
| Illingen to Castalla | 836.89 mi (1,346.85 km) |
| Illingen to Castellbisbal | 598.29 mi (962.86 km) |
| Illingen to Castelldefels | 610.98 mi (983.28 km) |
| Illingen to Castello de Ampurias | 527.61 mi (849.11 km) |
| Illingen to Castellon de la Plana | 735.70 mi (1,183.99 km) |
| Illingen to Castilleja de la Cuesta | 1,054.93 mi (1,697.74 km) |
| Illingen to Catarroja | 780.39 mi (1,255.91 km) |
| Illingen to Catral | 867.41 mi (1,395.96 km) |
| Illingen to Caudete | 837.44 mi (1,347.73 km) |
| Illingen to Cehegin | 894.74 mi (1,439.94 km) |
