| Ostringen to Oliveira do Bairro | 1,031.39 mi (1,659.86 km) |
| Ostringen to Oliveira do Hospital | 1,013.78 mi (1,631.52 km) |
| Ostringen to Ourem | 1,074.47 mi (1,729.19 km) |
| Ostringen to Ovar | 1,020.87 mi (1,642.93 km) |
| Ostringen to Pacos de Ferreira | 993.85 mi (1,599.44 km) |
| Ostringen to Palmela | 1,139.88 mi (1,834.46 km) |
| Ostringen to Paredes | 994.10 mi (1,599.85 km) |
| Ostringen to Paredes de Coura | 972.81 mi (1,565.58 km) |
| Ostringen to Penacova | 1,034.24 mi (1,664.46 km) |
| Ostringen to Penafiel | 991.86 mi (1,596.25 km) |
| Ostringen to Peniche | 1,119.66 mi (1,801.92 km) |
| Ostringen to Peso da Regua | 973.46 mi (1,566.63 km) |
| Ostringen to Pinhal Novo | 1,137.22 mi (1,830.18 km) |
| Ostringen to Pinhel | 963.18 mi (1,550.09 km) |
| Ostringen to Pombal | 1,064.24 mi (1,712.73 km) |
