| Webster Groves to Chivasso | 4,745.56 mi (7,637.24 km) |
| Webster Groves to Ciampino | 5,073.94 mi (8,165.72 km) |
| Webster Groves to Cicciano | 5,188.37 mi (8,349.88 km) |
| Webster Groves to Cingoli | 5,033.22 mi (8,100.18 km) |
| Webster Groves to Cinisello Balsamo | 4,785.02 mi (7,700.75 km) |
| Webster Groves to Cinisi | 5,249.04 mi (8,447.52 km) |
| Webster Groves to Cirie | 4,732.25 mi (7,615.83 km) |
| Webster Groves to Ciro Marina | 5,364.26 mi (8,632.94 km) |
| Webster Groves to Cislago | 4,771.15 mi (7,678.42 km) |
| Webster Groves to Cisterna di Latina | 5,092.08 mi (8,194.92 km) |
| Webster Groves to Cisternino | 5,315.76 mi (8,554.88 km) |
| Webster Groves to Citta di Castello | 4,990.33 mi (8,031.16 km) |
| Webster Groves to Citta Sant'Angelo | 5,102.46 mi (8,211.62 km) |
| Webster Groves to Cittadella | 4,882.42 mi (7,857.50 km) |
| Webster Groves to Cittanova | 5,366.58 mi (8,636.68 km) |
