| Portet-sur-Garonne to Nowy Sacz | 1,004.81 mi (1,617.09 km) |
| Portet-sur-Garonne to Nowy Targ | 972.45 mi (1,565.01 km) |
| Portet-sur-Garonne to Nowy Tomysl | 910.28 mi (1,464.95 km) |
| Portet-sur-Garonne to Nysa | 888.21 mi (1,429.44 km) |
| Portet-sur-Garonne to Oborniki | 947.07 mi (1,524.16 km) |
| Portet-sur-Garonne to Oborniki Slaskie | 899.04 mi (1,446.87 km) |
| Portet-sur-Garonne to Olawa | 901.63 mi (1,451.04 km) |
| Portet-sur-Garonne to Olecko | 1,196.36 mi (1,925.36 km) |
| Portet-sur-Garonne to Olesnica | 913.69 mi (1,470.44 km) |
| Portet-sur-Garonne to Olesno | 943.07 mi (1,517.73 km) |
| Portet-sur-Garonne to Olkusz | 972.59 mi (1,565.23 km) |
| Portet-sur-Garonne to Olsztyn | 1,116.38 mi (1,796.65 km) |
| Portet-sur-Garonne to Opalenica | 919.54 mi (1,479.85 km) |
| Portet-sur-Garonne to Opoczno | 1,031.22 mi (1,659.60 km) |
| Portet-sur-Garonne to Opole | 917.77 mi (1,477.02 km) |
