| Constanta to Oliveira de Frades | 1,876.41 mi (3,019.79 km) |
| Constanta to Oliveira do Bairro | 1,896.73 mi (3,052.49 km) |
| Constanta to Oliveira do Hospital | 1,869.02 mi (3,007.89 km) |
| Constanta to Ourem | 1,921.33 mi (3,092.09 km) |
| Constanta to Ovar | 1,895.13 mi (3,049.91 km) |
| Constanta to Pacos de Ferreira | 1,874.61 mi (3,016.90 km) |
| Constanta to Palmela | 1,966.56 mi (3,164.88 km) |
| Constanta to Paredes | 1,872.81 mi (3,014.00 km) |
| Constanta to Paredes de Coura | 1,868.72 mi (3,007.41 km) |
| Constanta to Penacova | 1,891.92 mi (3,044.76 km) |
| Constanta to Penafiel | 1,870.25 mi (3,009.88 km) |
| Constanta to Peniche | 1,968.64 mi (3,168.22 km) |
| Constanta to Peso da Regua | 1,846.16 mi (2,971.11 km) |
| Constanta to Pinhal Novo | 1,965.49 mi (3,163.15 km) |
| Constanta to Pinhel | 1,819.78 mi (2,928.66 km) |
