| Sumter to Chivasso | 4,530.16 mi (7,290.59 km) |
| Sumter to Ciampino | 4,845.71 mi (7,798.41 km) |
| Sumter to Cicciano | 4,961.27 mi (7,984.39 km) |
| Sumter to Cingoli | 4,822.28 mi (7,760.70 km) |
| Sumter to Cinisello Balsamo | 4,578.43 mi (7,368.27 km) |
| Sumter to Cinisi | 4,990.31 mi (8,031.12 km) |
| Sumter to Cirie | 4,516.17 mi (7,268.07 km) |
| Sumter to Ciro Marina | 5,135.27 mi (8,264.42 km) |
| Sumter to Cislago | 4,564.56 mi (7,345.95 km) |
| Sumter to Cisterna di Latina | 4,862.94 mi (7,826.14 km) |
| Sumter to Cisternino | 5,100.22 mi (8,208.01 km) |
| Sumter to Citta di Castello | 4,776.05 mi (7,686.31 km) |
| Sumter to Citta Sant'Angelo | 4,887.31 mi (7,865.36 km) |
| Sumter to Cittadella | 4,687.19 mi (7,543.31 km) |
| Sumter to Cittanova | 5,123.65 mi (8,245.72 km) |
