| Waltham to Carmona | 3,405.89 mi (5,481.24 km) |
| Waltham to Cartagena | 3,626.33 mi (5,836.02 km) |
| Waltham to Cartama | 3,479.14 mi (5,599.13 km) |
| Waltham to Cartaya | 3,337.70 mi (5,371.51 km) |
| Waltham to Caspe | 3,554.47 mi (5,720.36 km) |
| Waltham to Cassa de la Selva | 3,667.91 mi (5,902.93 km) |
| Waltham to Castalla | 3,608.34 mi (5,807.06 km) |
| Waltham to Castellbisbal | 3,640.06 mi (5,858.12 km) |
| Waltham to Castelldefels | 3,646.04 mi (5,867.74 km) |
| Waltham to Castello de Ampurias | 3,665.39 mi (5,898.88 km) |
| Waltham to Castellon de la Plana | 3,593.75 mi (5,783.58 km) |
| Waltham to Castilleja de la Cuesta | 3,388.25 mi (5,452.85 km) |
| Waltham to Catarroja | 3,594.84 mi (5,785.34 km) |
| Waltham to Catral | 3,616.28 mi (5,819.85 km) |
| Waltham to Caudete | 3,589.73 mi (5,777.12 km) |
