| Port Royal to Cascais | 3,931.27 mi (6,326.76 km) |
| Port Royal to Castelo Branco | 4,006.13 mi (6,447.24 km) |
| Port Royal to Castro Daire | 3,962.37 mi (6,376.82 km) |
| Port Royal to Celorico de Basto | 3,949.59 mi (6,356.25 km) |
| Port Royal to Chamusca | 3,965.79 mi (6,382.32 km) |
| Port Royal to Chaves | 3,968.89 mi (6,387.30 km) |
| Port Royal to Cinfaes | 3,948.45 mi (6,354.41 km) |
| Port Royal to Coimbra | 3,951.11 mi (6,358.69 km) |
| Port Royal to Condeixa-a-Nova | 3,949.41 mi (6,355.97 km) |
| Port Royal to Corroios | 3,946.72 mi (6,351.63 km) |
| Port Royal to Coruche | 3,971.68 mi (6,391.80 km) |
| Port Royal to Costa de Caparica | 3,941.73 mi (6,343.61 km) |
| Port Royal to Covilha | 3,996.51 mi (6,431.77 km) |
| Port Royal to Eiras | 3,950.75 mi (6,358.12 km) |
| Port Royal to Elvas | 4,044.05 mi (6,508.27 km) |
