| Holladay to Oberkirch | 5,267.90 mi (8,477.87 km) |
| Holladay to Obernburg am Main | 5,233.43 mi (8,422.38 km) |
| Holladay to Obernkirchen | 5,108.90 mi (8,221.97 km) |
| Holladay to Oberschleissheim | 5,388.43 mi (8,671.84 km) |
| Holladay to Oberstdorf | 5,393.49 mi (8,679.98 km) |
| Holladay to Obertraubling | 5,368.37 mi (8,639.55 km) |
| Holladay to Obertshausen | 5,212.62 mi (8,388.90 km) |
| Holladay to Oberursel | 5,197.99 mi (8,365.36 km) |
| Holladay to Ochsenfurt | 5,270.76 mi (8,482.47 km) |
| Holladay to Ochsenhausen | 5,348.92 mi (8,608.25 km) |
| Holladay to Ochtrup | 5,056.08 mi (8,136.97 km) |
| Holladay to Odenthal | 5,112.38 mi (8,227.58 km) |
| Holladay to Oelde | 5,102.83 mi (8,212.21 km) |
| Holladay to Oelsnitz | 5,291.77 mi (8,516.27 km) |
| Holladay to Oer-Erkenschwick | 5,085.96 mi (8,185.07 km) |
