| Glenpool to Oberkirch | 4,973.04 mi (8,003.33 km) |
| Glenpool to Obernburg am Main | 4,961.28 mi (7,984.42 km) |
| Glenpool to Obernkirchen | 4,865.93 mi (7,830.96 km) |
| Glenpool to Oberschleissheim | 5,114.55 mi (8,231.07 km) |
| Glenpool to Oberstdorf | 5,100.78 mi (8,208.92 km) |
| Glenpool to Obertraubling | 5,106.96 mi (8,218.86 km) |
| Glenpool to Obertshausen | 4,941.12 mi (7,951.97 km) |
| Glenpool to Oberursel | 4,926.42 mi (7,928.31 km) |
| Glenpool to Ochsenfurt | 5,002.66 mi (8,051.00 km) |
| Glenpool to Ochsenhausen | 5,061.52 mi (8,145.74 km) |
| Glenpool to Ochtrup | 4,800.09 mi (7,725.00 km) |
| Glenpool to Odenthal | 4,841.37 mi (7,791.43 km) |
| Glenpool to Oelde | 4,848.32 mi (7,802.62 km) |
| Glenpool to Oelsnitz | 5,047.11 mi (8,122.54 km) |
| Glenpool to Oer-Erkenschwick | 4,823.34 mi (7,762.42 km) |
