| Silleda to Oerlinghausen | 1,013.69 mi (1,631.37 km) |
| Silleda to Oestrich-Winkel | 920.97 mi (1,482.16 km) |
| Silleda to Offenburg | 875.04 mi (1,408.24 km) |
| Silleda to Oftersheim | 926.08 mi (1,490.39 km) |
| Silleda to Ohrdruf | 1,054.19 mi (1,696.55 km) |
| Silleda to Ohringen | 959.77 mi (1,544.60 km) |
| Silleda to Olbernhau | 1,155.02 mi (1,858.83 km) |
| Silleda to Olching | 1,017.40 mi (1,637.35 km) |
| Silleda to Oldenburg | 1,044.48 mi (1,680.93 km) |
| Silleda to Oldenburg in Holstein | 1,179.71 mi (1,898.56 km) |
| Silleda to Olfen | 958.45 mi (1,542.48 km) |
| Silleda to Olpe | 948.64 mi (1,526.70 km) |
| Silleda to Olsberg | 984.63 mi (1,584.61 km) |
| Silleda to Oranienburg | 1,208.34 mi (1,944.63 km) |
| Silleda to Ortenberg | 973.73 mi (1,567.07 km) |
