| Silves to Oerlinghausen | 1,316.63 mi (2,118.92 km) |
| Silves to Oestrich-Winkel | 1,203.21 mi (1,936.38 km) |
| Silves to Offenburg | 1,133.83 mi (1,824.72 km) |
| Silves to Oftersheim | 1,195.51 mi (1,923.99 km) |
| Silves to Ohrdruf | 1,332.52 mi (2,144.49 km) |
| Silves to Ohringen | 1,221.23 mi (1,965.39 km) |
| Silves to Olbernhau | 1,419.13 mi (2,283.86 km) |
| Silves to Olching | 1,252.95 mi (2,016.43 km) |
| Silves to Oldenburg | 1,361.65 mi (2,191.37 km) |
| Silves to Oldenburg in Holstein | 1,494.96 mi (2,405.90 km) |
| Silves to Olfen | 1,265.78 mi (2,037.07 km) |
| Silves to Olpe | 1,245.25 mi (2,004.04 km) |
| Silves to Olsberg | 1,281.53 mi (2,062.42 km) |
| Silves to Oranienburg | 1,498.39 mi (2,411.42 km) |
| Silves to Ortenberg | 1,254.69 mi (2,019.24 km) |
