| Cincinnati to Carmona | 4,132.86 mi (6,651.20 km) |
| Cincinnati to Cartagena | 4,350.83 mi (7,001.99 km) |
| Cincinnati to Cartama | 4,206.40 mi (6,769.54 km) |
| Cincinnati to Cartaya | 4,065.34 mi (6,542.53 km) |
| Cincinnati to Caspe | 4,271.34 mi (6,874.06 km) |
| Cincinnati to Cassa de la Selva | 4,380.06 mi (7,049.02 km) |
| Cincinnati to Castalla | 4,331.12 mi (6,970.26 km) |
| Cincinnati to Castellbisbal | 4,354.30 mi (7,007.56 km) |
| Cincinnati to Castelldefels | 4,360.79 mi (7,018.02 km) |
| Cincinnati to Castello de Ampurias | 4,376.26 mi (7,042.91 km) |
| Cincinnati to Castellon de la Plana | 4,313.43 mi (6,941.79 km) |
| Cincinnati to Castilleja de la Cuesta | 4,115.45 mi (6,623.18 km) |
| Cincinnati to Catarroja | 4,315.98 mi (6,945.90 km) |
| Cincinnati to Catral | 4,339.85 mi (6,984.32 km) |
| Cincinnati to Caudete | 4,312.56 mi (6,940.39 km) |
