| Piqua to Oliveira de Frades | 3,864.55 mi (6,219.39 km) |
| Piqua to Oliveira do Bairro | 3,855.82 mi (6,205.34 km) |
| Piqua to Oliveira do Hospital | 3,890.68 mi (6,261.44 km) |
| Piqua to Ourem | 3,879.53 mi (6,243.51 km) |
| Piqua to Ovar | 3,838.85 mi (6,178.03 km) |
| Piqua to Pacos de Ferreira | 3,837.62 mi (6,176.06 km) |
| Piqua to Palmela | 3,897.80 mi (6,272.91 km) |
| Piqua to Paredes | 3,842.76 mi (6,184.33 km) |
| Piqua to Paredes de Coura | 3,810.68 mi (6,132.69 km) |
| Piqua to Penacova | 3,873.62 mi (6,233.98 km) |
| Piqua to Penafiel | 3,844.88 mi (6,187.74 km) |
| Piqua to Peniche | 3,850.83 mi (6,197.32 km) |
| Piqua to Peso da Regua | 3,869.80 mi (6,227.85 km) |
| Piqua to Pinhal Novo | 3,895.09 mi (6,268.54 km) |
| Piqua to Pinhel | 3,914.72 mi (6,300.14 km) |
