| Ystrad Mynach to Oerlinghausen | 508.65 mi (818.59 km) |
| Ystrad Mynach to Oestrich-Winkel | 503.03 mi (809.56 km) |
| Ystrad Mynach to Offenburg | 541.34 mi (871.21 km) |
| Ystrad Mynach to Oftersheim | 542.11 mi (872.44 km) |
| Ystrad Mynach to Ohrdruf | 606.17 mi (975.54 km) |
| Ystrad Mynach to Ohringen | 584.82 mi (941.17 km) |
| Ystrad Mynach to Olbernhau | 719.85 mi (1,158.48 km) |
| Ystrad Mynach to Olching | 688.43 mi (1,107.92 km) |
| Ystrad Mynach to Oldenburg | 493.41 mi (794.06 km) |
| Ystrad Mynach to Oldenburg in Holstein | 614.49 mi (988.92 km) |
| Ystrad Mynach to Olfen | 454.77 mi (731.89 km) |
| Ystrad Mynach to Olpe | 479.57 mi (771.79 km) |
| Ystrad Mynach to Olsberg | 504.17 mi (811.38 km) |
| Ystrad Mynach to Oranienburg | 700.47 mi (1,127.30 km) |
| Ystrad Mynach to Ortenberg | 541.32 mi (871.17 km) |
