| Sumter to Corato | 5,039.15 mi (8,109.73 km) |
| Sumter to Corbetta | 4,567.68 mi (7,350.98 km) |
| Sumter to Corciano | 4,788.28 mi (7,705.99 km) |
| Sumter to Cordenons | 4,716.30 mi (7,590.14 km) |
| Sumter to Cori | 4,865.00 mi (7,829.46 km) |
| Sumter to Coriano | 4,775.67 mi (7,685.70 km) |
| Sumter to Corigliano Calabro | 5,099.14 mi (8,206.27 km) |
| Sumter to Corleone | 5,011.74 mi (8,065.62 km) |
| Sumter to Cormano | 4,576.24 mi (7,364.74 km) |
| Sumter to Cornaredo | 4,571.84 mi (7,357.66 km) |
| Sumter to Cornate d'Adda | 4,586.45 mi (7,381.18 km) |
| Sumter to Cornedo Vicentino | 4,669.46 mi (7,514.76 km) |
| Sumter to Correggio | 4,670.49 mi (7,516.43 km) |
| Sumter to Corridonia | 4,839.38 mi (7,788.23 km) |
| Sumter to Corsico | 4,577.45 mi (7,366.69 km) |
