| Silla to Oberkirch | 760.58 mi (1,224.03 km) |
| Silla to Obernburg am Main | 861.55 mi (1,386.54 km) |
| Silla to Obernkirchen | 1,000.78 mi (1,610.59 km) |
| Silla to Oberschleissheim | 854.69 mi (1,375.49 km) |
| Silla to Oberstdorf | 771.47 mi (1,241.56 km) |
| Silla to Obertraubling | 908.12 mi (1,461.48 km) |
| Silla to Obertshausen | 866.29 mi (1,394.16 km) |
| Silla to Oberursel | 867.68 mi (1,396.40 km) |
| Silla to Ochsenfurt | 876.74 mi (1,410.97 km) |
| Silla to Ochsenhausen | 792.15 mi (1,274.84 km) |
| Silla to Ochtrup | 958.74 mi (1,542.95 km) |
| Silla to Odenthal | 884.67 mi (1,423.74 km) |
| Silla to Oelde | 954.37 mi (1,535.91 km) |
| Silla to Oelsnitz | 978.27 mi (1,574.37 km) |
| Silla to Oer-Erkenschwick | 924.83 mi (1,488.37 km) |
