| Oppeano to Oliveira do Bairro | 1,046.35 mi (1,683.94 km) |
| Oppeano to Oliveira do Hospital | 1,020.73 mi (1,642.71 km) |
| Oppeano to Ourem | 1,076.07 mi (1,731.77 km) |
| Oppeano to Ovar | 1,042.76 mi (1,678.17 km) |
| Oppeano to Pacos de Ferreira | 1,020.76 mi (1,642.76 km) |
| Oppeano to Palmela | 1,128.25 mi (1,815.74 km) |
| Oppeano to Paredes | 1,019.33 mi (1,640.45 km) |
| Oppeano to Paredes de Coura | 1,012.42 mi (1,629.33 km) |
| Oppeano to Penacova | 1,043.34 mi (1,679.10 km) |
| Oppeano to Penafiel | 1,016.80 mi (1,636.39 km) |
| Oppeano to Peniche | 1,123.46 mi (1,808.04 km) |
| Oppeano to Peso da Regua | 993.57 mi (1,599.00 km) |
| Oppeano to Pinhal Novo | 1,126.63 mi (1,813.14 km) |
| Oppeano to Pinhel | 970.44 mi (1,561.77 km) |
| Oppeano to Pombal | 1,070.54 mi (1,722.87 km) |
