| Northolt to Oliveira de Frades | 835.46 mi (1,344.55 km) |
| Northolt to Oliveira do Bairro | 854.85 mi (1,375.74 km) |
| Northolt to Oliveira do Hospital | 851.61 mi (1,370.54 km) |
| Northolt to Ourem | 911.15 mi (1,466.36 km) |
| Northolt to Ovar | 835.81 mi (1,345.10 km) |
| Northolt to Pacos de Ferreira | 805.63 mi (1,296.53 km) |
| Northolt to Palmela | 987.16 mi (1,588.69 km) |
| Northolt to Paredes | 808.31 mi (1,300.85 km) |
| Northolt to Paredes de Coura | 769.36 mi (1,238.17 km) |
| Northolt to Penacova | 865.82 mi (1,393.41 km) |
| Northolt to Penafiel | 806.85 mi (1,298.50 km) |
| Northolt to Peniche | 947.20 mi (1,524.37 km) |
| Northolt to Peso da Regua | 798.55 mi (1,285.14 km) |
| Northolt to Pinhal Novo | 983.33 mi (1,582.52 km) |
| Northolt to Pinhel | 808.95 mi (1,301.88 km) |
