| Cedarburg to Orbetello | 4,688.52 mi (7,545.45 km) |
| Cedarburg to Oria | 5,027.26 mi (8,090.60 km) |
| Cedarburg to Oristano | 4,692.45 mi (7,551.77 km) |
| Cedarburg to Orta Nova | 4,914.38 mi (7,908.93 km) |
| Cedarburg to Orte | 4,733.83 mi (7,618.36 km) |
| Cedarburg to Ortona | 4,817.21 mi (7,752.54 km) |
| Cedarburg to Orvieto | 4,711.66 mi (7,582.68 km) |
| Cedarburg to Orzinuovi | 4,511.73 mi (7,260.93 km) |
| Cedarburg to Osimo | 4,731.17 mi (7,614.08 km) |
| Cedarburg to Ospitaletto | 4,510.58 mi (7,259.08 km) |
| Cedarburg to Ostuni | 5,014.39 mi (8,069.89 km) |
| Cedarburg to Ottaviano | 4,888.16 mi (7,866.73 km) |
| Cedarburg to Ovada | 4,493.59 mi (7,231.74 km) |
| Cedarburg to Ozieri | 4,680.06 mi (7,531.83 km) |
| Cedarburg to Paceco | 4,940.82 mi (7,951.48 km) |
