| Wood Dale to Oberkirch | 4,374.70 mi (7,040.41 km) |
| Wood Dale to Obernburg am Main | 4,363.50 mi (7,022.38 km) |
| Wood Dale to Obernkirchen | 4,269.66 mi (6,871.35 km) |
| Wood Dale to Oberschleissheim | 4,516.58 mi (7,268.74 km) |
| Wood Dale to Oberstdorf | 4,502.43 mi (7,245.96 km) |
| Wood Dale to Obertraubling | 4,509.43 mi (7,257.23 km) |
| Wood Dale to Obertshausen | 4,343.38 mi (6,990.00 km) |
| Wood Dale to Oberursel | 4,328.69 mi (6,966.36 km) |
| Wood Dale to Ochsenfurt | 4,404.98 mi (7,089.13 km) |
| Wood Dale to Ochsenhausen | 4,463.27 mi (7,182.94 km) |
| Wood Dale to Ochtrup | 4,203.19 mi (6,764.39 km) |
| Wood Dale to Odenthal | 4,243.75 mi (6,829.66 km) |
| Wood Dale to Oelde | 4,251.43 mi (6,842.01 km) |
| Wood Dale to Oelsnitz | 4,450.45 mi (7,162.30 km) |
| Wood Dale to Oer-Erkenschwick | 4,226.09 mi (6,801.24 km) |
