| Oswego to Opwijk | 4,164.38 mi (6,701.92 km) |
| Oswego to Ostend | 4,108.00 mi (6,611.19 km) |
| Oswego to Oud-Heverlee | 4,187.18 mi (6,738.62 km) |
| Oswego to Oud-Turnhout | 4,181.70 mi (6,729.79 km) |
| Oswego to Oudenaarde | 4,146.62 mi (6,673.34 km) |
| Oswego to Oudenburg | 4,112.49 mi (6,618.42 km) |
| Oswego to Oupeye | 4,228.09 mi (6,804.45 km) |
| Oswego to Overijse | 4,183.98 mi (6,733.47 km) |
| Oswego to Overpelt | 4,201.30 mi (6,761.34 km) |
| Oswego to Paal | 4,198.65 mi (6,757.08 km) |
| Oswego to Peer | 4,205.69 mi (6,768.40 km) |
| Oswego to Pepinster | 4,239.71 mi (6,823.16 km) |
| Oswego to Peruwelz | 4,157.70 mi (6,691.17 km) |
| Oswego to Perwez | 4,200.22 mi (6,759.61 km) |
| Oswego to Philippeville | 4,205.50 mi (6,768.09 km) |
