| Silleda to Oberkirch | 883.10 mi (1,421.22 km) |
| Silleda to Obernburg am Main | 961.99 mi (1,548.18 km) |
| Silleda to Obernkirchen | 1,040.95 mi (1,675.25 km) |
| Silleda to Oberschleissheim | 1,029.41 mi (1,656.68 km) |
| Silleda to Oberstdorf | 957.57 mi (1,541.06 km) |
| Silleda to Obertraubling | 1,068.94 mi (1,720.30 km) |
| Silleda to Obertshausen | 956.17 mi (1,538.80 km) |
| Silleda to Oberursel | 950.13 mi (1,529.08 km) |
| Silleda to Ochsenfurt | 994.87 mi (1,601.09 km) |
| Silleda to Ochsenhausen | 954.22 mi (1,535.66 km) |
| Silleda to Ochtrup | 971.33 mi (1,563.20 km) |
| Silleda to Odenthal | 922.79 mi (1,485.08 km) |
| Silleda to Oelde | 990.18 mi (1,593.54 km) |
| Silleda to Oelsnitz | 1,101.00 mi (1,771.88 km) |
| Silleda to Oer-Erkenschwick | 950.86 mi (1,530.26 km) |
