| Osuna to Cortona | 990.62 mi (1,594.24 km) |
| Osuna to Cosenza | 1,164.21 mi (1,873.61 km) |
| Osuna to Cossato | 894.76 mi (1,439.97 km) |
| Osuna to Costa Volpino | 982.54 mi (1,581.24 km) |
| Osuna to Creazzo | 1,030.23 mi (1,658.00 km) |
| Osuna to Crema | 948.65 mi (1,526.71 km) |
| Osuna to Cremona | 955.20 mi (1,537.24 km) |
| Osuna to Crevalcore | 990.20 mi (1,593.57 km) |
| Osuna to Crispiano | 1,219.47 mi (1,962.54 km) |
| Osuna to Crosia | 1,191.96 mi (1,918.27 km) |
| Osuna to Crotone | 1,210.71 mi (1,948.44 km) |
| Osuna to Cuneo | 824.08 mi (1,326.23 km) |
| Osuna to Cuorgne | 867.28 mi (1,395.76 km) |
| Osuna to Cusano Milanino | 934.82 mi (1,504.44 km) |
| Osuna to Cutro | 1,203.57 mi (1,936.95 km) |
