| Irig to Oliveira de Frades | 1,442.94 mi (2,322.18 km) |
| Irig to Oliveira do Bairro | 1,463.48 mi (2,355.24 km) |
| Irig to Oliveira do Hospital | 1,436.54 mi (2,311.88 km) |
| Irig to Ourem | 1,490.07 mi (2,398.04 km) |
| Irig to Ovar | 1,461.11 mi (2,351.44 km) |
| Irig to Pacos de Ferreira | 1,440.02 mi (2,317.48 km) |
| Irig to Palmela | 1,538.06 mi (2,475.27 km) |
| Irig to Paredes | 1,438.36 mi (2,314.81 km) |
| Irig to Paredes de Coura | 1,433.17 mi (2,306.47 km) |
| Irig to Penacova | 1,459.36 mi (2,348.61 km) |
| Irig to Penafiel | 1,435.81 mi (2,310.71 km) |
| Irig to Peniche | 1,537.47 mi (2,474.32 km) |
| Irig to Peso da Regua | 1,412.03 mi (2,272.45 km) |
| Irig to Pinhal Novo | 1,536.77 mi (2,473.20 km) |
| Irig to Pinhel | 1,386.85 mi (2,231.92 km) |
