| Leighton Buzzard to Carmona | 1,027.20 mi (1,653.12 km) |
| Leighton Buzzard to Cartagena | 989.30 mi (1,592.12 km) |
| Leighton Buzzard to Cartama | 1,068.32 mi (1,719.30 km) |
| Leighton Buzzard to Cartaya | 1,059.19 mi (1,704.61 km) |
| Leighton Buzzard to Caspe | 738.73 mi (1,188.88 km) |
| Leighton Buzzard to Cassa de la Selva | 712.41 mi (1,146.52 km) |
| Leighton Buzzard to Castalla | 920.31 mi (1,481.09 km) |
| Leighton Buzzard to Castellbisbal | 731.99 mi (1,178.02 km) |
| Leighton Buzzard to Castelldefels | 745.38 mi (1,199.57 km) |
| Leighton Buzzard to Castello de Ampurias | 689.84 mi (1,110.20 km) |
| Leighton Buzzard to Castellon de la Plana | 825.06 mi (1,327.81 km) |
| Leighton Buzzard to Castilleja de la Cuesta | 1,037.76 mi (1,670.12 km) |
| Leighton Buzzard to Catarroja | 864.70 mi (1,391.60 km) |
| Leighton Buzzard to Catral | 950.55 mi (1,529.76 km) |
| Leighton Buzzard to Caudete | 913.00 mi (1,469.34 km) |
