| Wilmette to Carmona | 4,197.22 mi (6,754.78 km) |
| Wilmette to Cartagena | 4,404.85 mi (7,088.92 km) |
| Wilmette to Cartama | 4,271.98 mi (6,875.09 km) |
| Wilmette to Cartaya | 4,133.65 mi (6,652.46 km) |
| Wilmette to Caspe | 4,307.60 mi (6,932.41 km) |
| Wilmette to Cassa de la Selva | 4,407.60 mi (7,093.34 km) |
| Wilmette to Castalla | 4,380.20 mi (7,049.25 km) |
| Wilmette to Castellbisbal | 4,385.43 mi (7,057.67 km) |
| Wilmette to Castelldefels | 4,392.79 mi (7,069.52 km) |
| Wilmette to Castello de Ampurias | 4,401.80 mi (7,084.00 km) |
| Wilmette to Castellon de la Plana | 4,355.18 mi (7,008.98 km) |
| Wilmette to Castilleja de la Cuesta | 4,181.04 mi (6,728.74 km) |
| Wilmette to Catarroja | 4,361.02 mi (7,018.39 km) |
| Wilmette to Catral | 4,391.10 mi (7,066.80 km) |
| Wilmette to Caudete | 4,361.84 mi (7,019.70 km) |
