| Brainerd to Oberkirch | 4,392.59 mi (7,069.19 km) |
| Brainerd to Obernburg am Main | 4,369.10 mi (7,031.39 km) |
| Brainerd to Obernkirchen | 4,258.91 mi (6,854.05 km) |
| Brainerd to Oberschleissheim | 4,524.24 mi (7,281.07 km) |
| Brainerd to Oberstdorf | 4,520.03 mi (7,274.28 km) |
| Brainerd to Obertraubling | 4,510.42 mi (7,258.82 km) |
| Brainerd to Obertshausen | 4,348.48 mi (6,998.21 km) |
| Brainerd to Oberursel | 4,333.72 mi (6,974.45 km) |
| Brainerd to Ochsenfurt | 4,408.74 mi (7,095.18 km) |
| Brainerd to Ochsenhausen | 4,477.76 mi (7,206.25 km) |
| Brainerd to Ochtrup | 4,198.85 mi (6,757.39 km) |
| Brainerd to Odenthal | 4,247.82 mi (6,836.20 km) |
| Brainerd to Oelde | 4,246.69 mi (6,834.39 km) |
| Brainerd to Oelsnitz | 4,442.12 mi (7,148.89 km) |
| Brainerd to Oer-Erkenschwick | 4,225.50 mi (6,800.29 km) |
