| Southern Pines to Oberkirch | 4,345.76 mi (6,993.83 km) |
| Southern Pines to Obernburg am Main | 4,353.56 mi (7,006.38 km) |
| Southern Pines to Obernkirchen | 4,287.24 mi (6,899.65 km) |
| Southern Pines to Oberschleissheim | 4,499.20 mi (7,240.75 km) |
| Southern Pines to Oberstdorf | 4,470.33 mi (7,194.31 km) |
| Southern Pines to Obertraubling | 4,502.37 mi (7,245.87 km) |
| Southern Pines to Obertshausen | 4,334.77 mi (6,976.14 km) |
| Southern Pines to Oberursel | 4,320.62 mi (6,953.37 km) |
| Southern Pines to Ochsenfurt | 4,396.65 mi (7,075.73 km) |
| Southern Pines to Ochsenhausen | 4,437.00 mi (7,140.66 km) |
| Southern Pines to Ochtrup | 4,213.04 mi (6,780.23 km) |
| Southern Pines to Odenthal | 4,239.62 mi (6,823.02 km) |
| Southern Pines to Oelde | 4,260.43 mi (6,856.50 km) |
| Southern Pines to Oelsnitz | 4,459.18 mi (7,176.36 km) |
| Southern Pines to Oer-Erkenschwick | 4,229.56 mi (6,806.82 km) |
