| Springboro to Oerlinghausen | 4,247.17 mi (6,835.16 km) |
| Springboro to Oestrich-Winkel | 4,287.81 mi (6,900.56 km) |
| Springboro to Offenburg | 4,337.58 mi (6,980.66 km) |
| Springboro to Oftersheim | 4,332.02 mi (6,971.72 km) |
| Springboro to Ohrdruf | 4,363.51 mi (7,022.38 km) |
| Springboro to Ohringen | 4,373.60 mi (7,038.62 km) |
| Springboro to Olbernhau | 4,466.33 mi (7,187.87 km) |
| Springboro to Olching | 4,480.27 mi (7,210.30 km) |
| Springboro to Oldenburg | 4,191.79 mi (6,746.04 km) |
| Springboro to Oldenburg in Holstein | 4,249.56 mi (6,839.00 km) |
| Springboro to Olfen | 4,207.23 mi (6,770.89 km) |
| Springboro to Olpe | 4,247.32 mi (6,835.41 km) |
| Springboro to Olsberg | 4,260.87 mi (6,857.21 km) |
| Springboro to Oranienburg | 4,386.83 mi (7,059.91 km) |
| Springboro to Ortenberg | 4,316.31 mi (6,946.43 km) |
