| Otopeni to Oliveira de Frades | 1,748.09 mi (2,813.28 km) |
| Otopeni to Oliveira do Bairro | 1,768.47 mi (2,846.09 km) |
| Otopeni to Oliveira do Hospital | 1,740.98 mi (2,801.84 km) |
| Otopeni to Ourem | 1,793.66 mi (2,886.61 km) |
| Otopeni to Ovar | 1,766.65 mi (2,843.14 km) |
| Otopeni to Pacos de Ferreira | 1,745.95 mi (2,809.84 km) |
| Otopeni to Palmela | 1,839.68 mi (2,960.67 km) |
| Otopeni to Paredes | 1,744.19 mi (2,807.01 km) |
| Otopeni to Paredes de Coura | 1,739.75 mi (2,799.86 km) |
| Otopeni to Penacova | 1,763.87 mi (2,838.67 km) |
| Otopeni to Penafiel | 1,741.64 mi (2,802.89 km) |
| Otopeni to Peniche | 1,841.00 mi (2,962.80 km) |
| Otopeni to Peso da Regua | 1,717.64 mi (2,764.28 km) |
| Otopeni to Pinhal Novo | 1,838.54 mi (2,958.85 km) |
| Otopeni to Pinhel | 1,691.61 mi (2,722.39 km) |
