| Williamstown to Chivasso | 4,051.63 mi (6,520.47 km) |
| Williamstown to Ciampino | 4,371.10 mi (7,034.61 km) |
| Williamstown to Cicciano | 4,486.65 mi (7,220.57 km) |
| Williamstown to Cingoli | 4,343.40 mi (6,990.03 km) |
| Williamstown to Cinisello Balsamo | 4,098.01 mi (6,595.11 km) |
| Williamstown to Cinisi | 4,524.67 mi (7,281.76 km) |
| Williamstown to Cirie | 4,037.77 mi (6,498.16 km) |
| Williamstown to Ciro Marina | 4,661.55 mi (7,502.04 km) |
| Williamstown to Cislago | 4,084.10 mi (6,572.73 km) |
| Williamstown to Cisterna di Latina | 4,388.61 mi (7,062.78 km) |
| Williamstown to Cisternino | 4,623.06 mi (7,440.09 km) |
| Williamstown to Citta di Castello | 4,297.85 mi (6,916.72 km) |
| Williamstown to Citta Sant'Angelo | 4,409.57 mi (7,096.52 km) |
| Williamstown to Cittadella | 4,204.60 mi (6,766.66 km) |
| Williamstown to Cittanova | 4,653.68 mi (7,489.38 km) |
