| Waltham to Oberkirch | 3,691.84 mi (5,941.45 km) |
| Waltham to Obernburg am Main | 3,696.63 mi (5,949.15 km) |
| Waltham to Obernkirchen | 3,626.91 mi (5,836.94 km) |
| Waltham to Oberschleissheim | 3,843.71 mi (6,185.85 km) |
| Waltham to Oberstdorf | 3,817.30 mi (6,143.34 km) |
| Waltham to Obertraubling | 3,845.34 mi (6,188.48 km) |
| Waltham to Obertshausen | 3,677.61 mi (5,918.54 km) |
| Waltham to Oberursel | 3,663.36 mi (5,895.60 km) |
| Waltham to Ochsenfurt | 3,739.58 mi (6,018.27 km) |
| Waltham to Ochsenhausen | 3,782.84 mi (6,087.89 km) |
| Waltham to Ochtrup | 3,553.36 mi (5,718.58 km) |
| Waltham to Odenthal | 3,581.66 mi (5,764.12 km) |
| Waltham to Oelde | 3,600.93 mi (5,795.13 km) |
| Waltham to Oelsnitz | 3,800.05 mi (6,115.59 km) |
| Waltham to Oer-Erkenschwick | 3,570.63 mi (5,746.37 km) |
