| Opatija to Oliveira do Bairro | 1,195.98 mi (1,924.74 km) |
| Opatija to Oliveira do Hospital | 1,169.81 mi (1,882.63 km) |
| Opatija to Ourem | 1,224.44 mi (1,970.54 km) |
| Opatija to Ovar | 1,192.88 mi (1,919.76 km) |
| Opatija to Pacos de Ferreira | 1,171.24 mi (1,884.92 km) |
| Opatija to Palmela | 1,274.93 mi (2,051.81 km) |
| Opatija to Paredes | 1,169.71 mi (1,882.47 km) |
| Opatija to Paredes de Coura | 1,163.47 mi (1,872.42 km) |
| Opatija to Penacova | 1,192.52 mi (1,919.17 km) |
| Opatija to Penafiel | 1,167.18 mi (1,878.39 km) |
| Opatija to Peniche | 1,271.86 mi (2,046.86 km) |
| Opatija to Peso da Regua | 1,143.72 mi (1,840.64 km) |
| Opatija to Pinhal Novo | 1,273.45 mi (2,049.42 km) |
| Opatija to Pinhel | 1,119.74 mi (1,802.05 km) |
| Opatija to Pombal | 1,219.38 mi (1,962.39 km) |
