| Porterville to Oberkirch | 5,749.70 mi (9,253.25 km) |
| Porterville to Obernburg am Main | 5,711.52 mi (9,191.81 km) |
| Porterville to Obernkirchen | 5,582.37 mi (8,983.95 km) |
| Porterville to Oberschleissheim | 5,865.99 mi (9,440.39 km) |
| Porterville to Oberstdorf | 5,874.30 mi (9,453.77 km) |
| Porterville to Obertraubling | 5,843.76 mi (9,404.62 km) |
| Porterville to Obertshausen | 5,690.72 mi (9,158.33 km) |
| Porterville to Oberursel | 5,676.18 mi (9,134.93 km) |
| Porterville to Ochsenfurt | 5,747.93 mi (9,250.41 km) |
| Porterville to Ochsenhausen | 5,829.05 mi (9,380.95 km) |
| Porterville to Ochtrup | 5,532.29 mi (8,903.35 km) |
| Porterville to Odenthal | 5,590.94 mi (8,997.75 km) |
| Porterville to Oelde | 5,578.49 mi (8,977.72 km) |
| Porterville to Oelsnitz | 5,764.44 mi (9,276.97 km) |
| Porterville to Oer-Erkenschwick | 5,563.19 mi (8,953.09 km) |
