| Somma Lombardo to Castelo Branco | 914.16 mi (1,471.21 km) |
| Somma Lombardo to Castro Daire | 897.31 mi (1,444.08 km) |
| Somma Lombardo to Celorico de Basto | 885.69 mi (1,425.39 km) |
| Somma Lombardo to Chamusca | 975.66 mi (1,570.17 km) |
| Somma Lombardo to Chaves | 850.56 mi (1,368.84 km) |
| Somma Lombardo to Cinfaes | 900.42 mi (1,449.09 km) |
| Somma Lombardo to Coimbra | 942.76 mi (1,517.22 km) |
| Somma Lombardo to Condeixa-a-Nova | 949.22 mi (1,527.62 km) |
| Somma Lombardo to Corroios | 1,033.43 mi (1,663.14 km) |
| Somma Lombardo to Coruche | 992.35 mi (1,597.04 km) |
| Somma Lombardo to Costa de Caparica | 1,036.08 mi (1,667.41 km) |
| Somma Lombardo to Covilha | 897.68 mi (1,444.67 km) |
| Somma Lombardo to Eiras | 941.47 mi (1,515.15 km) |
| Somma Lombardo to Elvas | 934.79 mi (1,504.40 km) |
| Somma Lombardo to Entroncamento | 970.74 mi (1,562.26 km) |
