| Upper Arlington to Oberkirch | 4,273.65 mi (6,877.78 km) |
| Upper Arlington to Obernburg am Main | 4,270.34 mi (6,872.45 km) |
| Upper Arlington to Obernkirchen | 4,187.74 mi (6,739.52 km) |
| Upper Arlington to Oberschleissheim | 4,420.94 mi (7,114.81 km) |
| Upper Arlington to Oberstdorf | 4,400.60 mi (7,082.08 km) |
| Upper Arlington to Obertraubling | 4,418.09 mi (7,110.23 km) |
| Upper Arlington to Obertshausen | 4,250.70 mi (6,840.83 km) |
| Upper Arlington to Oberursel | 4,236.17 mi (6,817.46 km) |
| Upper Arlington to Ochsenfurt | 4,312.67 mi (6,940.58 km) |
| Upper Arlington to Ochsenhausen | 4,363.70 mi (7,022.70 km) |
| Upper Arlington to Ochtrup | 4,117.69 mi (6,626.78 km) |
| Upper Arlington to Odenthal | 4,152.52 mi (6,682.84 km) |
| Upper Arlington to Oelde | 4,165.78 mi (6,704.18 km) |
| Upper Arlington to Oelsnitz | 4,365.54 mi (7,025.65 km) |
| Upper Arlington to Oer-Erkenschwick | 4,137.99 mi (6,659.45 km) |
