| Galveston to Cascais | 4,763.83 mi (7,666.65 km) |
| Galveston to Castelo Branco | 4,830.85 mi (7,774.51 km) |
| Galveston to Castro Daire | 4,782.12 mi (7,696.09 km) |
| Galveston to Celorico de Basto | 4,766.84 mi (7,671.48 km) |
| Galveston to Chamusca | 4,794.12 mi (7,715.38 km) |
| Galveston to Chaves | 4,783.42 mi (7,698.18 km) |
| Galveston to Cinfaes | 4,767.41 mi (7,672.40 km) |
| Galveston to Coimbra | 4,775.11 mi (7,684.80 km) |
| Galveston to Condeixa-a-Nova | 4,773.99 mi (7,682.99 km) |
| Galveston to Corroios | 4,779.34 mi (7,691.61 km) |
| Galveston to Coruche | 4,801.93 mi (7,727.95 km) |
| Galveston to Costa de Caparica | 4,774.33 mi (7,683.53 km) |
| Galveston to Covilha | 4,818.89 mi (7,755.25 km) |
| Galveston to Eiras | 4,774.59 mi (7,683.96 km) |
| Galveston to Elvas | 4,872.90 mi (7,842.17 km) |
