| Wyoming to Oberkirch | 4,245.74 mi (6,832.85 km) |
| Wyoming to Obernburg am Main | 4,235.45 mi (6,816.30 km) |
| Wyoming to Obernkirchen | 4,143.06 mi (6,667.61 km) |
| Wyoming to Oberschleissheim | 4,388.28 mi (7,062.25 km) |
| Wyoming to Oberstdorf | 4,373.41 mi (7,038.33 km) |
| Wyoming to Obertraubling | 4,381.66 mi (7,051.59 km) |
| Wyoming to Obertshausen | 4,215.38 mi (6,784.01 km) |
| Wyoming to Oberursel | 4,200.71 mi (6,760.39 km) |
| Wyoming to Ochsenfurt | 4,277.05 mi (6,883.25 km) |
| Wyoming to Ochsenhausen | 4,334.50 mi (6,975.70 km) |
| Wyoming to Ochtrup | 4,076.07 mi (6,559.81 km) |
| Wyoming to Odenthal | 4,115.90 mi (6,623.90 km) |
| Wyoming to Oelde | 4,124.31 mi (6,637.43 km) |
| Wyoming to Oelsnitz | 4,323.50 mi (6,958.00 km) |
| Wyoming to Oer-Erkenschwick | 4,098.64 mi (6,596.12 km) |
