| Castel San Giorgio to Castelo Branco | 1,168.62 mi (1,880.70 km) |
| Castel San Giorgio to Castro Daire | 1,179.76 mi (1,898.65 km) |
| Castel San Giorgio to Celorico de Basto | 1,179.55 mi (1,898.30 km) |
| Castel San Giorgio to Chamusca | 1,226.27 mi (1,973.49 km) |
| Castel San Giorgio to Chaves | 1,150.24 mi (1,851.13 km) |
| Castel San Giorgio to Cinfaes | 1,188.49 mi (1,912.68 km) |
| Castel San Giorgio to Coimbra | 1,212.35 mi (1,951.09 km) |
| Castel San Giorgio to Condeixa-a-Nova | 1,217.12 mi (1,958.77 km) |
| Castel San Giorgio to Corroios | 1,272.78 mi (2,048.35 km) |
| Castel San Giorgio to Coruche | 1,234.51 mi (1,986.75 km) |
| Castel San Giorgio to Costa de Caparica | 1,276.71 mi (2,054.66 km) |
| Castel San Giorgio to Covilha | 1,163.18 mi (1,871.96 km) |
| Castel San Giorgio to Eiras | 1,211.73 mi (1,950.10 km) |
| Castel San Giorgio to Elvas | 1,163.93 mi (1,873.17 km) |
| Castel San Giorgio to Entroncamento | 1,223.83 mi (1,969.57 km) |
