| Alloa to Oliveira de Frades | 1,082.32 mi (1,741.82 km) |
| Alloa to Oliveira do Bairro | 1,098.65 mi (1,768.11 km) |
| Alloa to Oliveira do Hospital | 1,104.22 mi (1,777.07 km) |
| Alloa to Ourem | 1,158.31 mi (1,864.11 km) |
| Alloa to Ovar | 1,076.02 mi (1,731.69 km) |
| Alloa to Pacos de Ferreira | 1,046.70 mi (1,684.50 km) |
| Alloa to Palmela | 1,235.06 mi (1,987.63 km) |
| Alloa to Paredes | 1,050.65 mi (1,690.86 km) |
| Alloa to Paredes de Coura | 1,004.27 mi (1,616.21 km) |
| Alloa to Penacova | 1,113.58 mi (1,792.14 km) |
| Alloa to Penafiel | 1,049.81 mi (1,689.51 km) |
| Alloa to Peniche | 1,186.07 mi (1,908.80 km) |
| Alloa to Peso da Regua | 1,048.44 mi (1,687.30 km) |
| Alloa to Pinhal Novo | 1,230.79 mi (1,980.77 km) |
| Alloa to Pinhel | 1,069.65 mi (1,721.44 km) |
