| Altdorf to Cascais | 1,071.40 mi (1,724.25 km) |
| Altdorf to Castelo Branco | 943.08 mi (1,517.74 km) |
| Altdorf to Castro Daire | 919.77 mi (1,480.23 km) |
| Altdorf to Celorico de Basto | 905.42 mi (1,457.13 km) |
| Altdorf to Chamusca | 1,004.35 mi (1,616.34 km) |
| Altdorf to Chaves | 869.42 mi (1,399.20 km) |
| Altdorf to Cinfaes | 921.39 mi (1,482.83 km) |
| Altdorf to Coimbra | 967.57 mi (1,557.15 km) |
| Altdorf to Condeixa-a-Nova | 974.32 mi (1,568.02 km) |
| Altdorf to Corroios | 1,063.69 mi (1,711.85 km) |
| Altdorf to Coruche | 1,022.66 mi (1,645.81 km) |
| Altdorf to Costa de Caparica | 1,066.02 mi (1,715.60 km) |
| Altdorf to Covilha | 924.31 mi (1,487.54 km) |
| Altdorf to Eiras | 966.14 mi (1,554.86 km) |
| Altdorf to Elvas | 968.91 mi (1,559.31 km) |
