| Maidenhead to Oliveira de Frades | 826.73 mi (1,330.49 km) |
| Maidenhead to Oliveira do Bairro | 845.97 mi (1,361.45 km) |
| Maidenhead to Oliveira do Hospital | 843.25 mi (1,357.07 km) |
| Maidenhead to Ourem | 902.56 mi (1,452.53 km) |
| Maidenhead to Ovar | 826.69 mi (1,330.43 km) |
| Maidenhead to Pacos de Ferreira | 796.50 mi (1,281.85 km) |
| Maidenhead to Palmela | 978.72 mi (1,575.10 km) |
| Maidenhead to Paredes | 799.26 mi (1,286.29 km) |
| Maidenhead to Paredes de Coura | 759.83 mi (1,222.82 km) |
| Maidenhead to Penacova | 857.19 mi (1,379.52 km) |
| Maidenhead to Penafiel | 797.83 mi (1,283.99 km) |
| Maidenhead to Peniche | 938.19 mi (1,509.88 km) |
| Maidenhead to Peso da Regua | 789.92 mi (1,271.25 km) |
| Maidenhead to Pinhal Novo | 974.86 mi (1,568.88 km) |
| Maidenhead to Pinhel | 801.02 mi (1,289.12 km) |
