| Galveston to Cividale del Friuli | 5,574.85 mi (8,971.86 km) |
| Galveston to Civita Castellana | 5,674.84 mi (9,132.77 km) |
| Galveston to Civitanova Marche | 5,693.13 mi (9,162.22 km) |
| Galveston to Civitavecchia | 5,655.82 mi (9,102.17 km) |
| Galveston to Civitella in Val di Chiana | 5,603.64 mi (9,018.19 km) |
| Galveston to Clusone | 5,440.65 mi (8,755.88 km) |
| Galveston to Coccaglio | 5,453.12 mi (8,775.95 km) |
| Galveston to Codigoro | 5,568.24 mi (8,961.21 km) |
| Galveston to Codogno | 5,455.94 mi (8,780.49 km) |
| Galveston to Codroipo | 5,561.69 mi (8,950.67 km) |
| Galveston to Cogoleto | 5,438.07 mi (8,751.73 km) |
| Galveston to Colle di Val d'Elsa | 5,579.42 mi (8,979.21 km) |
| Galveston to Colle Salvetti | 5,544.43 mi (8,922.90 km) |
| Galveston to Collecchio | 5,491.95 mi (8,838.44 km) |
| Galveston to Colleferro | 5,722.13 mi (9,208.88 km) |
