| Charleston to Collegno | 4,549.48 mi (7,321.69 km) |
| Charleston to Cologno al Serio | 4,630.24 mi (7,451.64 km) |
| Charleston to Cologno Monzese | 4,613.13 mi (7,424.12 km) |
| Charleston to Colorno | 4,679.06 mi (7,530.22 km) |
| Charleston to Comacchio | 4,765.70 mi (7,669.66 km) |
| Charleston to Comiso | 5,126.72 mi (8,250.66 km) |
| Charleston to Como | 4,596.80 mi (7,397.83 km) |
| Charleston to Concordia Sagittaria | 4,762.70 mi (7,664.83 km) |
| Charleston to Concorezzo | 4,613.97 mi (7,425.47 km) |
| Charleston to Conegliano | 4,735.13 mi (7,620.46 km) |
| Charleston to Conselice | 4,755.72 mi (7,653.59 km) |
| Charleston to Conselve | 4,735.78 mi (7,621.51 km) |
| Charleston to Conversano | 5,107.12 mi (8,219.12 km) |
| Charleston to Copertino | 5,173.73 mi (8,326.31 km) |
| Charleston to Copparo | 4,744.25 mi (7,635.13 km) |
