| Upminster to Oliveira de Frades | 849.53 mi (1,367.19 km) |
| Upminster to Oliveira do Bairro | 869.16 mi (1,398.79 km) |
| Upminster to Oliveira do Hospital | 864.99 mi (1,392.07 km) |
| Upminster to Ourem | 924.92 mi (1,488.52 km) |
| Upminster to Ovar | 850.57 mi (1,368.85 km) |
| Upminster to Pacos de Ferreira | 820.42 mi (1,320.34 km) |
| Upminster to Palmela | 1,000.62 mi (1,610.34 km) |
| Upminster to Paredes | 822.96 mi (1,324.43 km) |
| Upminster to Paredes de Coura | 784.93 mi (1,263.22 km) |
| Upminster to Penacova | 879.68 mi (1,415.71 km) |
| Upminster to Penafiel | 821.44 mi (1,321.99 km) |
| Upminster to Peniche | 961.71 mi (1,547.72 km) |
| Upminster to Peso da Regua | 812.44 mi (1,307.49 km) |
| Upminster to Pinhal Novo | 996.84 mi (1,604.26 km) |
| Upminster to Pinhel | 821.56 mi (1,322.18 km) |
