| Oulu to Nowy Sacz | 1,077.44 mi (1,733.97 km) |
| Oulu to Nowy Targ | 1,092.44 mi (1,758.11 km) |
| Oulu to Nowy Tomysl | 936.95 mi (1,507.88 km) |
| Oulu to Nysa | 1,046.64 mi (1,684.40 km) |
| Oulu to Oborniki | 906.66 mi (1,459.13 km) |
| Oulu to Oborniki Slaskie | 995.70 mi (1,602.43 km) |
| Oulu to Olawa | 1,015.95 mi (1,635.01 km) |
| Oulu to Olecko | 765.61 mi (1,232.13 km) |
| Oulu to Olesnica | 997.19 mi (1,604.82 km) |
| Oulu to Olesno | 1,009.11 mi (1,624.01 km) |
| Oulu to Olkusz | 1,040.02 mi (1,673.75 km) |
| Oulu to Olsztyn | 795.37 mi (1,280.02 km) |
| Oulu to Opalenica | 934.13 mi (1,503.33 km) |
| Oulu to Opoczno | 960.17 mi (1,545.25 km) |
| Oulu to Opole | 1,027.63 mi (1,653.82 km) |
