| The Woodlands to Oberkirch | 5,250.53 mi (8,449.91 km) |
| The Woodlands to Obernburg am Main | 5,246.39 mi (8,443.25 km) |
| The Woodlands to Obernkirchen | 5,161.29 mi (8,306.30 km) |
| The Woodlands to Oberschleissheim | 5,397.37 mi (8,686.23 km) |
| The Woodlands to Oberstdorf | 5,377.54 mi (8,654.31 km) |
| The Woodlands to Obertraubling | 5,393.90 mi (8,680.65 km) |
| The Woodlands to Obertshausen | 5,226.66 mi (8,411.50 km) |
| The Woodlands to Oberursel | 5,212.10 mi (8,388.07 km) |
| The Woodlands to Ochsenfurt | 5,288.60 mi (8,511.18 km) |
| The Woodlands to Ochsenhausen | 5,340.50 mi (8,594.70 km) |
| The Woodlands to Ochtrup | 5,092.14 mi (8,195.01 km) |
| The Woodlands to Odenthal | 5,128.20 mi (8,253.03 km) |
| The Woodlands to Oelde | 5,140.30 mi (8,272.51 km) |
| The Woodlands to Oelsnitz | 5,339.99 mi (8,593.88 km) |
| The Woodlands to Oer-Erkenschwick | 5,113.05 mi (8,228.65 km) |
