| Oristano to Oliveira do Bairro | 901.40 mi (1,450.67 km) |
| Oristano to Oliveira do Hospital | 868.51 mi (1,397.74 km) |
| Oristano to Ourem | 909.88 mi (1,464.31 km) |
| Oristano to Ovar | 907.47 mi (1,460.43 km) |
| Oristano to Pacos de Ferreira | 895.07 mi (1,440.47 km) |
| Oristano to Palmela | 939.12 mi (1,511.37 km) |
| Oristano to Paredes | 891.58 mi (1,434.86 km) |
| Oristano to Paredes de Coura | 904.82 mi (1,456.17 km) |
| Oristano to Penacova | 891.02 mi (1,433.95 km) |
| Oristano to Penafiel | 889.02 mi (1,430.73 km) |
| Oristano to Peniche | 954.83 mi (1,536.65 km) |
| Oristano to Peso da Regua | 862.61 mi (1,388.23 km) |
| Oristano to Pinhal Novo | 939.01 mi (1,511.19 km) |
| Oristano to Pinhel | 825.70 mi (1,328.83 km) |
| Oristano to Pombal | 911.18 mi (1,466.40 km) |
