| Oshkosh to Orbetello | 4,680.15 mi (7,531.97 km) |
| Oshkosh to Oria | 5,017.06 mi (8,074.18 km) |
| Oshkosh to Oristano | 4,687.54 mi (7,543.86 km) |
| Oshkosh to Orta Nova | 4,904.57 mi (7,893.14 km) |
| Oshkosh to Orte | 4,724.84 mi (7,603.89 km) |
| Oshkosh to Ortona | 4,807.28 mi (7,736.57 km) |
| Oshkosh to Orvieto | 4,702.60 mi (7,568.10 km) |
| Oshkosh to Orzinuovi | 4,501.48 mi (7,244.44 km) |
| Oshkosh to Osimo | 4,720.79 mi (7,597.38 km) |
| Oshkosh to Ospitaletto | 4,500.13 mi (7,242.26 km) |
| Oshkosh to Ostuni | 5,004.05 mi (8,053.23 km) |
| Oshkosh to Ottaviano | 4,879.38 mi (7,852.60 km) |
| Oshkosh to Ovada | 4,484.61 mi (7,217.28 km) |
| Oshkosh to Ozieri | 4,674.36 mi (7,522.66 km) |
| Oshkosh to Paceco | 4,935.34 mi (7,942.67 km) |
