| Oswego to Olivares | 4,215.19 mi (6,783.69 km) |
| Oswego to Olivenza | 4,125.06 mi (6,638.65 km) |
| Oswego to Olot | 4,421.09 mi (7,115.06 km) |
| Oswego to Onate | 4,179.08 mi (6,725.59 km) |
| Oswego to Onda | 4,386.64 mi (7,059.62 km) |
| Oswego to Onteniente | 4,415.03 mi (7,105.30 km) |
| Oswego to Orihuela | 4,428.14 mi (7,126.40 km) |
| Oswego to Osuna | 4,270.66 mi (6,872.97 km) |
| Oswego to Ourense | 3,963.75 mi (6,379.04 km) |
| Oswego to Oviedo | 4,018.54 mi (6,467.22 km) |
| Oswego to Paiporta | 4,400.22 mi (7,081.47 km) |
| Oswego to Pajara | 4,171.45 mi (6,713.30 km) |
| Oswego to Palafolls | 4,452.05 mi (7,164.88 km) |
| Oswego to Palafrugell | 4,459.99 mi (7,177.67 km) |
| Oswego to Palamos | 4,461.32 mi (7,179.81 km) |
