| South Houston to Chivasso | 5,372.22 mi (8,645.75 km) |
| South Houston to Ciampino | 5,696.26 mi (9,167.25 km) |
| South Houston to Cicciano | 5,811.53 mi (9,352.76 km) |
| South Houston to Cingoli | 5,662.60 mi (9,113.08 km) |
| South Houston to Cinisello Balsamo | 5,415.34 mi (8,715.14 km) |
| South Houston to Cinisi | 5,857.80 mi (9,427.21 km) |
| South Houston to Cirie | 5,358.59 mi (8,623.81 km) |
| South Houston to Ciro Marina | 5,987.14 mi (9,635.37 km) |
| South Houston to Cislago | 5,401.42 mi (8,692.74 km) |
| South Houston to Cisterna di Latina | 5,714.06 mi (9,195.90 km) |
| South Houston to Cisternino | 5,944.15 mi (9,566.19 km) |
| South Houston to Citta di Castello | 5,618.24 mi (9,041.68 km) |
| South Houston to Citta Sant'Angelo | 5,730.36 mi (9,222.13 km) |
| South Houston to Cittadella | 5,517.39 mi (8,879.38 km) |
| South Houston to Cittanova | 5,983.22 mi (9,629.07 km) |
