| Ruislip to Oliveira de Frades | 835.90 mi (1,345.26 km) |
| Ruislip to Oliveira do Bairro | 855.25 mi (1,376.39 km) |
| Ruislip to Oliveira do Hospital | 852.15 mi (1,371.41 km) |
| Ruislip to Ourem | 911.63 mi (1,467.13 km) |
| Ruislip to Ovar | 836.14 mi (1,345.64 km) |
| Ruislip to Pacos de Ferreira | 805.96 mi (1,297.06 km) |
| Ruislip to Palmela | 987.69 mi (1,589.53 km) |
| Ruislip to Paredes | 808.66 mi (1,301.42 km) |
| Ruislip to Paredes de Coura | 769.58 mi (1,238.51 km) |
| Ruislip to Penacova | 866.29 mi (1,394.16 km) |
| Ruislip to Penafiel | 807.21 mi (1,299.08 km) |
| Ruislip to Peniche | 947.57 mi (1,524.96 km) |
| Ruislip to Peso da Regua | 799.02 mi (1,285.89 km) |
| Ruislip to Pinhal Novo | 983.84 mi (1,583.34 km) |
| Ruislip to Pinhel | 809.60 mi (1,302.93 km) |
