| Fort Leonard Wood to Oberkirch | 4,734.95 mi (7,620.17 km) |
| Fort Leonard Wood to Obernburg am Main | 4,725.19 mi (7,604.45 km) |
| Fort Leonard Wood to Obernkirchen | 4,632.85 mi (7,455.86 km) |
| Fort Leonard Wood to Oberschleissheim | 4,877.91 mi (7,850.24 km) |
| Fort Leonard Wood to Oberstdorf | 4,862.58 mi (7,825.57 km) |
| Fort Leonard Wood to Obertraubling | 4,871.46 mi (7,839.86 km) |
| Fort Leonard Wood to Obertshausen | 4,705.13 mi (7,572.18 km) |
| Fort Leonard Wood to Oberursel | 4,690.47 mi (7,548.58 km) |
| Fort Leonard Wood to Ochsenfurt | 4,766.82 mi (7,671.45 km) |
| Fort Leonard Wood to Ochsenhausen | 4,823.86 mi (7,763.25 km) |
| Fort Leonard Wood to Ochtrup | 4,565.93 mi (7,348.16 km) |
| Fort Leonard Wood to Odenthal | 4,605.69 mi (7,412.15 km) |
| Fort Leonard Wood to Oelde | 4,614.17 mi (7,425.79 km) |
| Fort Leonard Wood to Oelsnitz | 4,813.35 mi (7,746.34 km) |
| Fort Leonard Wood to Oer-Erkenschwick | 4,588.49 mi (7,384.46 km) |
