| Plano to Oberkirch | 5,150.12 mi (8,288.31 km) |
| Plano to Obernburg am Main | 5,141.05 mi (8,273.72 km) |
| Plano to Obernkirchen | 5,049.18 mi (8,125.87 km) |
| Plano to Oberschleissheim | 5,293.61 mi (8,519.24 km) |
| Plano to Oberstdorf | 5,277.68 mi (8,493.60 km) |
| Plano to Obertraubling | 5,287.46 mi (8,509.34 km) |
| Plano to Obertshausen | 5,121.03 mi (8,241.50 km) |
| Plano to Oberursel | 5,106.37 mi (8,217.91 km) |
| Plano to Ochsenfurt | 5,182.74 mi (8,340.82 km) |
| Plano to Ochsenhausen | 5,239.19 mi (8,431.66 km) |
| Plano to Ochtrup | 4,982.17 mi (8,018.03 km) |
| Plano to Odenthal | 5,021.67 mi (8,081.59 km) |
| Plano to Oelde | 5,030.40 mi (8,095.65 km) |
| Plano to Oelsnitz | 5,229.62 mi (8,416.26 km) |
| Plano to Oer-Erkenschwick | 5,004.63 mi (8,054.17 km) |
