| Reston to Carmona | 3,787.99 mi (6,096.18 km) |
| Reston to Cartagena | 4,012.54 mi (6,457.56 km) |
| Reston to Cartama | 3,860.46 mi (6,212.81 km) |
| Reston to Cartaya | 3,718.01 mi (5,983.56 km) |
| Reston to Caspe | 3,946.98 mi (6,352.05 km) |
| Reston to Cassa de la Selva | 4,062.45 mi (6,537.89 km) |
| Reston to Castalla | 3,996.53 mi (6,431.79 km) |
| Reston to Castellbisbal | 4,033.79 mi (6,491.76 km) |
| Reston to Castelldefels | 4,039.54 mi (6,501.01 km) |
| Reston to Castello de Ampurias | 4,060.37 mi (6,534.54 km) |
| Reston to Castellon de la Plana | 3,984.53 mi (6,412.48 km) |
| Reston to Castilleja de la Cuesta | 3,769.79 mi (6,066.90 km) |
| Reston to Catarroja | 3,984.52 mi (6,412.46 km) |
| Reston to Catral | 4,003.63 mi (6,443.21 km) |
| Reston to Caudete | 3,977.89 mi (6,401.79 km) |
