| Sannicolau Mare to Oerlinghausen | 676.39 mi (1,088.54 km) |
| Sannicolau Mare to Oestrich-Winkel | 642.01 mi (1,033.22 km) |
| Sannicolau Mare to Offenburg | 616.42 mi (992.04 km) |
| Sannicolau Mare to Oftersheim | 603.15 mi (970.68 km) |
| Sannicolau Mare to Ohrdruf | 559.06 mi (899.72 km) |
| Sannicolau Mare to Ohringen | 560.28 mi (901.68 km) |
| Sannicolau Mare to Olbernhau | 460.90 mi (741.75 km) |
| Sannicolau Mare to Olching | 460.86 mi (741.68 km) |
| Sannicolau Mare to Oldenburg | 738.12 mi (1,187.89 km) |
| Sannicolau Mare to Oldenburg in Holstein | 712.17 mi (1,146.13 km) |
| Sannicolau Mare to Olfen | 715.12 mi (1,150.87 km) |
| Sannicolau Mare to Olpe | 676.06 mi (1,088.01 km) |
| Sannicolau Mare to Olsberg | 661.48 mi (1,064.55 km) |
| Sannicolau Mare to Oranienburg | 568.27 mi (914.54 km) |
| Sannicolau Mare to Ortenberg | 608.24 mi (978.87 km) |
