| Muskegon to Oberkirch | 4,251.22 mi (6,841.68 km) |
| Muskegon to Obernburg am Main | 4,239.89 mi (6,823.44 km) |
| Muskegon to Obernkirchen | 4,146.04 mi (6,672.40 km) |
| Muskegon to Oberschleissheim | 4,392.99 mi (7,069.84 km) |
| Muskegon to Oberstdorf | 4,378.96 mi (7,047.25 km) |
| Muskegon to Obertraubling | 4,385.80 mi (7,058.26 km) |
| Muskegon to Obertshausen | 4,219.76 mi (6,791.05 km) |
| Muskegon to Oberursel | 4,205.08 mi (6,767.42 km) |
| Muskegon to Ochsenfurt | 4,281.36 mi (6,890.18 km) |
| Muskegon to Ochsenhausen | 4,339.75 mi (6,984.15 km) |
| Muskegon to Ochtrup | 4,079.55 mi (6,565.41 km) |
| Muskegon to Odenthal | 4,120.12 mi (6,630.70 km) |
| Muskegon to Oelde | 4,127.79 mi (6,643.03 km) |
| Muskegon to Oelsnitz | 4,326.81 mi (6,963.33 km) |
| Muskegon to Oer-Erkenschwick | 4,102.45 mi (6,602.26 km) |
