| West Des Moines to Oberkirch | 4,610.19 mi (7,419.38 km) |
| West Des Moines to Obernburg am Main | 4,593.63 mi (7,392.74 km) |
| West Des Moines to Obernkirchen | 4,492.24 mi (7,229.57 km) |
| West Des Moines to Oberschleissheim | 4,747.90 mi (7,641.00 km) |
| West Des Moines to Oberstdorf | 4,738.02 mi (7,625.10 km) |
| West Des Moines to Obertraubling | 4,737.78 mi (7,624.72 km) |
| West Des Moines to Obertshausen | 4,573.26 mi (7,359.94 km) |
| West Des Moines to Oberursel | 4,558.51 mi (7,336.21 km) |
| West Des Moines to Ochsenfurt | 4,634.37 mi (7,458.30 km) |
| West Des Moines to Ochsenhausen | 4,697.46 mi (7,559.83 km) |
| West Des Moines to Ochtrup | 4,428.57 mi (7,127.10 km) |
| West Des Moines to Odenthal | 4,472.98 mi (7,198.56 km) |
| West Des Moines to Oelde | 4,476.73 mi (7,204.60 km) |
| West Des Moines to Oelsnitz | 4,674.48 mi (7,522.85 km) |
| West Des Moines to Oer-Erkenschwick | 4,453.21 mi (7,166.75 km) |
