| American Canyon to Oberkirch | 5,717.35 mi (9,201.19 km) |
| American Canyon to Obernburg am Main | 5,673.75 mi (9,131.03 km) |
| American Canyon to Obernkirchen | 5,538.64 mi (8,913.58 km) |
| American Canyon to Oberschleissheim | 5,827.02 mi (9,377.68 km) |
| American Canyon to Oberstdorf | 5,840.09 mi (9,398.71 km) |
| American Canyon to Obertraubling | 5,801.84 mi (9,337.16 km) |
| American Canyon to Obertshausen | 5,653.01 mi (9,097.64 km) |
| American Canyon to Oberursel | 5,638.65 mi (9,074.53 km) |
| American Canyon to Ochsenfurt | 5,708.75 mi (9,187.34 km) |
| American Canyon to Ochsenhausen | 5,793.94 mi (9,324.45 km) |
| American Canyon to Ochtrup | 5,492.38 mi (8,839.13 km) |
| American Canyon to Odenthal | 5,554.19 mi (8,938.60 km) |
| American Canyon to Oelde | 5,537.71 mi (8,912.08 km) |
| American Canyon to Oelsnitz | 5,719.13 mi (9,204.06 km) |
| American Canyon to Oer-Erkenschwick | 5,524.61 mi (8,891.01 km) |
