| Wyomissing to Oberkirch | 3,972.97 mi (6,393.88 km) |
| Wyomissing to Obernburg am Main | 3,976.51 mi (6,399.57 km) |
| Wyomissing to Obernkirchen | 3,904.41 mi (6,283.54 km) |
| Wyomissing to Oberschleissheim | 4,124.21 mi (6,637.28 km) |
| Wyomissing to Oberstdorf | 4,098.67 mi (6,596.17 km) |
| Wyomissing to Obertraubling | 4,125.13 mi (6,638.75 km) |
| Wyomissing to Obertshausen | 3,957.38 mi (6,368.78 km) |
| Wyomissing to Oberursel | 3,943.07 mi (6,345.76 km) |
| Wyomissing to Ochsenfurt | 4,019.38 mi (6,468.56 km) |
| Wyomissing to Ochsenhausen | 4,063.86 mi (6,540.15 km) |
| Wyomissing to Ochtrup | 3,831.49 mi (6,166.19 km) |
| Wyomissing to Odenthal | 3,860.99 mi (6,213.67 km) |
| Wyomissing to Oelde | 3,879.19 mi (6,242.95 km) |
| Wyomissing to Oelsnitz | 4,078.54 mi (6,563.78 km) |
| Wyomissing to Oer-Erkenschwick | 3,849.33 mi (6,194.90 km) |
