| Owings Mills to Cortona | 4,382.98 mi (7,053.73 km) |
| Owings Mills to Cosenza | 4,716.27 mi (7,590.11 km) |
| Owings Mills to Cossato | 4,141.55 mi (6,665.17 km) |
| Owings Mills to Costa Volpino | 4,215.67 mi (6,784.46 km) |
| Owings Mills to Creazzo | 4,284.17 mi (6,894.70 km) |
| Owings Mills to Crema | 4,213.04 mi (6,780.24 km) |
| Owings Mills to Cremona | 4,235.68 mi (6,816.66 km) |
| Owings Mills to Crevalcore | 4,297.41 mi (6,916.02 km) |
| Owings Mills to Crispiano | 4,709.49 mi (7,579.19 km) |
| Owings Mills to Crosia | 4,728.87 mi (7,610.39 km) |
| Owings Mills to Crotone | 4,763.10 mi (7,665.48 km) |
| Owings Mills to Cuneo | 4,152.37 mi (6,682.59 km) |
| Owings Mills to Cuorgne | 4,124.84 mi (6,638.28 km) |
| Owings Mills to Cusano Milanino | 4,185.70 mi (6,736.24 km) |
| Owings Mills to Cutro | 4,759.12 mi (7,659.07 km) |
