| Momchilgrad to Oestrich-Winkel | 1,019.20 mi (1,640.24 km) |
| Momchilgrad to Offenburg | 976.07 mi (1,570.83 km) |
| Momchilgrad to Oftersheim | 975.77 mi (1,570.35 km) |
| Momchilgrad to Ohrdruf | 948.61 mi (1,526.65 km) |
| Momchilgrad to Ohringen | 933.80 mi (1,502.81 km) |
| Momchilgrad to Olbernhau | 854.23 mi (1,374.75 km) |
| Momchilgrad to Olching | 828.01 mi (1,332.55 km) |
| Momchilgrad to Oldenburg | 1,131.20 mi (1,820.49 km) |
| Momchilgrad to Oldenburg in Holstein | 1,104.94 mi (1,778.23 km) |
| Momchilgrad to Olfen | 1,102.58 mi (1,774.43 km) |
| Momchilgrad to Olpe | 1,060.52 mi (1,706.74 km) |
| Momchilgrad to Olsberg | 1,049.14 mi (1,688.42 km) |
| Momchilgrad to Oranienburg | 960.91 mi (1,546.44 km) |
| Momchilgrad to Ortenberg | 991.05 mi (1,594.94 km) |
| Momchilgrad to Oschatz | 891.58 mi (1,434.86 km) |
