| Welling to Carmona | 1,006.64 mi (1,620.03 km) |
| Welling to Cartagena | 959.07 mi (1,543.48 km) |
| Welling to Cartama | 1,045.23 mi (1,682.13 km) |
| Welling to Cartaya | 1,041.78 mi (1,676.58 km) |
| Welling to Caspe | 706.59 mi (1,137.14 km) |
| Welling to Cassa de la Selva | 673.96 mi (1,084.64 km) |
| Welling to Castalla | 889.53 mi (1,431.56 km) |
| Welling to Castellbisbal | 695.41 mi (1,119.15 km) |
| Welling to Castelldefels | 708.87 mi (1,140.82 km) |
| Welling to Castello de Ampurias | 650.85 mi (1,047.44 km) |
| Welling to Castellon de la Plana | 792.96 mi (1,276.15 km) |
| Welling to Castilleja de la Cuesta | 1,018.05 mi (1,638.39 km) |
| Welling to Catarroja | 833.40 mi (1,341.22 km) |
| Welling to Catral | 920.01 mi (1,480.62 km) |
| Welling to Caudete | 882.88 mi (1,420.86 km) |
