| Silleda to Cascais | 283.23 mi (455.82 km) |
| Silleda to Castelo Branco | 202.82 mi (326.41 km) |
| Silleda to Castro Daire | 125.32 mi (201.69 km) |
| Silleda to Celorico de Basto | 91.76 mi (147.67 km) |
| Silleda to Chamusca | 231.83 mi (373.09 km) |
| Silleda to Chaves | 76.90 mi (123.76 km) |
| Silleda to Cinfaes | 110.67 mi (178.10 km) |
| Silleda to Coimbra | 172.27 mi (277.23 km) |
| Silleda to Condeixa-a-Nova | 179.02 mi (288.11 km) |
| Silleda to Corroios | 286.33 mi (460.80 km) |
| Silleda to Coruche | 259.08 mi (416.95 km) |
| Silleda to Costa de Caparica | 285.07 mi (458.78 km) |
| Silleda to Covilha | 171.23 mi (275.57 km) |
| Silleda to Eiras | 170.11 mi (273.77 km) |
| Silleda to Elvas | 270.84 mi (435.88 km) |
