| Waunakee to Oberkirch | 4,372.64 mi (7,037.08 km) |
| Waunakee to Obernburg am Main | 4,358.22 mi (7,013.87 km) |
| Waunakee to Obernkirchen | 4,259.99 mi (6,855.78 km) |
| Waunakee to Oberschleissheim | 4,512.05 mi (7,261.44 km) |
| Waunakee to Oberstdorf | 4,500.47 mi (7,242.80 km) |
| Waunakee to Obertraubling | 4,503.15 mi (7,247.12 km) |
| Waunakee to Obertshausen | 4,337.94 mi (6,981.24 km) |
| Waunakee to Oberursel | 4,323.21 mi (6,957.53 km) |
| Waunakee to Ochsenfurt | 4,399.27 mi (7,079.95 km) |
| Waunakee to Ochsenhausen | 4,460.44 mi (7,178.39 km) |
| Waunakee to Ochtrup | 4,195.08 mi (6,751.34 km) |
| Waunakee to Odenthal | 4,237.89 mi (6,820.22 km) |
| Waunakee to Oelde | 4,243.29 mi (6,828.92 km) |
| Waunakee to Oelsnitz | 4,441.66 mi (7,148.17 km) |
| Waunakee to Oer-Erkenschwick | 4,218.99 mi (6,789.81 km) |
