| Spearfish to Oberkirch | 4,807.28 mi (7,736.58 km) |
| Spearfish to Obernburg am Main | 4,776.89 mi (7,687.66 km) |
| Spearfish to Obernkirchen | 4,657.64 mi (7,495.74 km) |
| Spearfish to Oberschleissheim | 4,932.19 mi (7,937.59 km) |
| Spearfish to Oberstdorf | 4,933.74 mi (7,940.08 km) |
| Spearfish to Obertraubling | 4,914.49 mi (7,909.10 km) |
| Spearfish to Obertshausen | 4,756.12 mi (7,654.24 km) |
| Spearfish to Oberursel | 4,741.42 mi (7,630.58 km) |
| Spearfish to Ochsenfurt | 4,815.16 mi (7,749.25 km) |
| Spearfish to Ochsenhausen | 4,889.97 mi (7,869.64 km) |
| Spearfish to Ochtrup | 4,601.95 mi (7,406.12 km) |
| Spearfish to Odenthal | 4,655.56 mi (7,492.40 km) |
| Spearfish to Oelde | 4,649.20 mi (7,482.16 km) |
| Spearfish to Oelsnitz | 4,840.97 mi (7,790.79 km) |
| Spearfish to Oer-Erkenschwick | 4,630.65 mi (7,452.32 km) |
