| Fort Lewis to Oberkirch | 5,196.77 mi (8,363.40 km) |
| Fort Lewis to Obernburg am Main | 5,145.63 mi (8,281.09 km) |
| Fort Lewis to Obernkirchen | 5,002.96 mi (8,051.48 km) |
| Fort Lewis to Oberschleissheim | 5,296.34 mi (8,523.64 km) |
| Fort Lewis to Oberstdorf | 5,316.08 mi (8,555.40 km) |
| Fort Lewis to Obertraubling | 5,267.22 mi (8,476.77 km) |
| Fort Lewis to Obertshausen | 5,125.09 mi (8,248.03 km) |
| Fort Lewis to Oberursel | 5,111.06 mi (8,225.45 km) |
| Fort Lewis to Ochsenfurt | 5,178.42 mi (8,333.87 km) |
| Fort Lewis to Ochsenhausen | 5,268.91 mi (8,479.49 km) |
| Fort Lewis to Ochtrup | 4,962.27 mi (7,986.00 km) |
| Fort Lewis to Odenthal | 5,028.20 mi (8,092.10 km) |
| Fort Lewis to Oelde | 5,006.10 mi (8,056.54 km) |
| Fort Lewis to Oelsnitz | 5,180.36 mi (8,336.98 km) |
| Fort Lewis to Oer-Erkenschwick | 4,996.20 mi (8,040.61 km) |
