| Orestiada to Oerlinghausen | 1,107.72 mi (1,782.70 km) |
| Orestiada to Oestrich-Winkel | 1,064.73 mi (1,713.51 km) |
| Orestiada to Offenburg | 1,024.82 mi (1,649.29 km) |
| Orestiada to Oftersheim | 1,022.24 mi (1,645.13 km) |
| Orestiada to Ohrdruf | 989.86 mi (1,593.03 km) |
| Orestiada to Ohringen | 979.98 mi (1,577.13 km) |
| Orestiada to Olbernhau | 892.62 mi (1,436.54 km) |
| Orestiada to Olching | 875.06 mi (1,408.28 km) |
| Orestiada to Oldenburg | 1,169.85 mi (1,882.70 km) |
| Orestiada to Oldenburg in Holstein | 1,138.26 mi (1,831.86 km) |
| Orestiada to Olfen | 1,144.95 mi (1,842.62 km) |
| Orestiada to Olpe | 1,104.01 mi (1,776.73 km) |
| Orestiada to Olsberg | 1,091.38 mi (1,756.40 km) |
| Orestiada to Oranienburg | 994.37 mi (1,600.29 km) |
| Orestiada to Ortenberg | 1,034.99 mi (1,665.66 km) |
