| South Plainfield to Oberkirch | 3,898.42 mi (6,273.89 km) |
| South Plainfield to Obernburg am Main | 3,903.14 mi (6,281.50 km) |
| South Plainfield to Obernkirchen | 3,832.95 mi (6,168.54 km) |
| South Plainfield to Oberschleissheim | 4,050.27 mi (6,518.29 km) |
| South Plainfield to Oberstdorf | 4,023.85 mi (6,475.76 km) |
| South Plainfield to Obertraubling | 4,051.84 mi (6,520.81 km) |
| South Plainfield to Obertshausen | 3,884.11 mi (6,250.87 km) |
| South Plainfield to Oberursel | 3,869.85 mi (6,227.92 km) |
| South Plainfield to Ochsenfurt | 3,946.09 mi (6,350.61 km) |
| South Plainfield to Ochsenhausen | 3,989.41 mi (6,420.34 km) |
| South Plainfield to Ochtrup | 3,759.56 mi (6,050.42 km) |
| South Plainfield to Odenthal | 3,788.09 mi (6,096.35 km) |
| South Plainfield to Oelde | 3,807.16 mi (6,127.03 km) |
| South Plainfield to Oelsnitz | 4,006.33 mi (6,447.57 km) |
| South Plainfield to Oer-Erkenschwick | 3,776.95 mi (6,078.41 km) |
