| Collegedale to Oberkirch | 4,586.07 mi (7,380.56 km) |
| Collegedale to Obernburg am Main | 4,587.78 mi (7,383.32 km) |
| Collegedale to Obernkirchen | 4,512.02 mi (7,261.39 km) |
| Collegedale to Oberschleissheim | 4,736.38 mi (7,622.46 km) |
| Collegedale to Oberstdorf | 4,712.10 mi (7,583.38 km) |
| Collegedale to Obertraubling | 4,736.21 mi (7,622.19 km) |
| Collegedale to Obertshausen | 4,568.49 mi (7,352.27 km) |
| Collegedale to Oberursel | 4,554.11 mi (7,329.12 km) |
| Collegedale to Ochsenfurt | 4,630.51 mi (7,452.08 km) |
| Collegedale to Ochsenhausen | 4,676.79 mi (7,526.57 km) |
| Collegedale to Ochtrup | 4,440.14 mi (7,145.71 km) |
| Collegedale to Odenthal | 4,471.49 mi (7,196.17 km) |
| Collegedale to Oelde | 4,488.01 mi (7,222.75 km) |
| Collegedale to Oelsnitz | 4,687.62 mi (7,544.00 km) |
| Collegedale to Oer-Erkenschwick | 4,458.87 mi (7,175.85 km) |
