| Ospitaletto to Oliveira do Bairro | 997.68 mi (1,605.61 km) |
| Ospitaletto to Oliveira do Hospital | 972.79 mi (1,565.55 km) |
| Ospitaletto to Ourem | 1,028.92 mi (1,655.89 km) |
| Ospitaletto to Ovar | 993.40 mi (1,598.72 km) |
| Ospitaletto to Pacos de Ferreira | 970.84 mi (1,562.41 km) |
| Ospitaletto to Palmela | 1,082.81 mi (1,742.61 km) |
| Ospitaletto to Paredes | 969.56 mi (1,560.35 km) |
| Ospitaletto to Paredes de Coura | 961.33 mi (1,547.11 km) |
| Ospitaletto to Penacova | 995.26 mi (1,601.72 km) |
| Ospitaletto to Penafiel | 967.05 mi (1,556.31 km) |
| Ospitaletto to Peniche | 1,076.24 mi (1,732.05 km) |
| Ospitaletto to Peso da Regua | 944.19 mi (1,519.53 km) |
| Ospitaletto to Pinhal Novo | 1,081.06 mi (1,739.80 km) |
| Ospitaletto to Pinhel | 922.25 mi (1,484.22 km) |
| Ospitaletto to Pombal | 1,022.87 mi (1,646.14 km) |
