| Whitburn to Oliveira de Frades | 1,066.10 mi (1,715.72 km) |
| Whitburn to Oliveira do Bairro | 1,082.54 mi (1,742.18 km) |
| Whitburn to Oliveira do Hospital | 1,087.85 mi (1,750.72 km) |
| Whitburn to Ourem | 1,142.14 mi (1,838.10 km) |
| Whitburn to Ovar | 1,059.99 mi (1,705.89 km) |
| Whitburn to Pacos de Ferreira | 1,030.61 mi (1,658.61 km) |
| Whitburn to Palmela | 1,218.93 mi (1,961.68 km) |
| Whitburn to Paredes | 1,034.53 mi (1,664.92 km) |
| Whitburn to Paredes de Coura | 988.31 mi (1,590.54 km) |
| Whitburn to Penacova | 1,097.37 mi (1,766.04 km) |
| Whitburn to Penafiel | 1,033.67 mi (1,663.54 km) |
| Whitburn to Peniche | 1,170.18 mi (1,883.23 km) |
| Whitburn to Peso da Regua | 1,032.10 mi (1,661.00 km) |
| Whitburn to Pinhal Novo | 1,214.68 mi (1,954.83 km) |
| Whitburn to Pinhel | 1,053.03 mi (1,694.69 km) |
