| Greenford to Oliveira de Frades | 834.90 mi (1,343.65 km) |
| Greenford to Oliveira do Bairro | 854.30 mi (1,374.86 km) |
| Greenford to Oliveira do Hospital | 851.01 mi (1,369.57 km) |
| Greenford to Ourem | 910.58 mi (1,465.43 km) |
| Greenford to Ovar | 835.29 mi (1,344.26 km) |
| Greenford to Pacos de Ferreira | 805.11 mi (1,295.70 km) |
| Greenford to Palmela | 986.57 mi (1,587.73 km) |
| Greenford to Paredes | 807.79 mi (1,300.00 km) |
| Greenford to Paredes de Coura | 768.89 mi (1,237.41 km) |
| Greenford to Penacova | 865.25 mi (1,392.48 km) |
| Greenford to Penafiel | 806.32 mi (1,297.65 km) |
| Greenford to Peniche | 946.67 mi (1,523.52 km) |
| Greenford to Peso da Regua | 797.97 mi (1,284.22 km) |
| Greenford to Pinhal Novo | 982.74 mi (1,581.56 km) |
| Greenford to Pinhel | 808.30 mi (1,300.84 km) |
