| Silea to Oliveira do Bairro | 1,104.07 mi (1,776.83 km) |
| Silea to Oliveira do Hospital | 1,078.75 mi (1,736.07 km) |
| Silea to Ourem | 1,134.37 mi (1,825.59 km) |
| Silea to Ovar | 1,100.15 mi (1,770.53 km) |
| Silea to Pacos de Ferreira | 1,077.85 mi (1,734.64 km) |
| Silea to Palmela | 1,187.01 mi (1,910.30 km) |
| Silea to Paredes | 1,076.50 mi (1,732.47 km) |
| Silea to Paredes de Coura | 1,068.77 mi (1,720.02 km) |
| Silea to Penacova | 1,101.31 mi (1,772.38 km) |
| Silea to Penafiel | 1,073.99 mi (1,728.42 km) |
| Silea to Peniche | 1,181.74 mi (1,901.83 km) |
| Silea to Peso da Regua | 1,050.95 mi (1,691.34 km) |
| Silea to Pinhal Novo | 1,185.36 mi (1,907.65 km) |
| Silea to Pinhel | 1,028.35 mi (1,654.97 km) |
| Silea to Pombal | 1,128.66 mi (1,816.40 km) |
