| Skokie to Oberkirch | 4,362.36 mi (7,020.53 km) |
| Skokie to Obernburg am Main | 4,351.30 mi (7,002.74 km) |
| Skokie to Obernkirchen | 4,257.67 mi (6,852.05 km) |
| Skokie to Oberschleissheim | 4,504.34 mi (7,249.03 km) |
| Skokie to Oberstdorf | 4,490.08 mi (7,226.08 km) |
| Skokie to Obertraubling | 4,497.27 mi (7,237.65 km) |
| Skokie to Obertshausen | 4,331.18 mi (6,970.37 km) |
| Skokie to Oberursel | 4,316.50 mi (6,946.73 km) |
| Skokie to Ochsenfurt | 4,392.79 mi (7,069.52 km) |
| Skokie to Ochsenhausen | 4,450.95 mi (7,163.12 km) |
| Skokie to Ochtrup | 4,191.13 mi (6,744.97 km) |
| Skokie to Odenthal | 4,231.57 mi (6,810.06 km) |
| Skokie to Oelde | 4,239.36 mi (6,822.60 km) |
| Skokie to Oelsnitz | 4,438.41 mi (7,142.93 km) |
| Skokie to Oer-Erkenschwick | 4,213.98 mi (6,781.74 km) |
