| Stara Zagora to Oestrich-Winkel | 988.93 mi (1,591.53 km) |
| Stara Zagora to Offenburg | 951.55 mi (1,531.37 km) |
| Stara Zagora to Oftersheim | 947.09 mi (1,524.19 km) |
| Stara Zagora to Ohrdruf | 912.11 mi (1,467.90 km) |
| Stara Zagora to Ohringen | 904.66 mi (1,455.91 km) |
| Stara Zagora to Olbernhau | 814.17 mi (1,310.29 km) |
| Stara Zagora to Olching | 800.48 mi (1,288.25 km) |
| Stara Zagora to Oldenburg | 1,091.39 mi (1,756.43 km) |
| Stara Zagora to Oldenburg in Holstein | 1,059.43 mi (1,704.99 km) |
| Stara Zagora to Olfen | 1,067.54 mi (1,718.05 km) |
| Stara Zagora to Olpe | 1,027.10 mi (1,652.95 km) |
| Stara Zagora to Olsberg | 1,013.94 mi (1,631.78 km) |
| Stara Zagora to Oranienburg | 915.53 mi (1,473.40 km) |
| Stara Zagora to Ortenberg | 958.33 mi (1,542.28 km) |
| Stara Zagora to Oschatz | 850.03 mi (1,368.00 km) |
