| Spout Springs to Oberkirch | 4,326.51 mi (6,962.85 km) |
| Spout Springs to Obernburg am Main | 4,334.61 mi (6,975.88 km) |
| Spout Springs to Obernkirchen | 4,268.76 mi (6,869.91 km) |
| Spout Springs to Oberschleissheim | 4,480.08 mi (7,210.00 km) |
| Spout Springs to Oberstdorf | 4,451.01 mi (7,163.20 km) |
| Spout Springs to Obertraubling | 4,483.42 mi (7,215.37 km) |
| Spout Springs to Obertshausen | 4,315.85 mi (6,945.68 km) |
| Spout Springs to Oberursel | 4,301.71 mi (6,922.93 km) |
| Spout Springs to Ochsenfurt | 4,377.71 mi (7,045.25 km) |
| Spout Springs to Ochsenhausen | 4,417.76 mi (7,109.71 km) |
| Spout Springs to Ochtrup | 4,194.45 mi (6,750.31 km) |
| Spout Springs to Odenthal | 4,220.80 mi (6,792.71 km) |
| Spout Springs to Oelde | 4,241.82 mi (6,826.54 km) |
| Spout Springs to Oelsnitz | 4,440.51 mi (7,146.30 km) |
| Spout Springs to Oer-Erkenschwick | 4,210.86 mi (6,776.72 km) |
