| Stara Zagora to Oria | 435.82 mi (701.39 km) |
| Stara Zagora to Oristano | 902.62 mi (1,452.62 km) |
| Stara Zagora to Orta Nova | 516.59 mi (831.37 km) |
| Stara Zagora to Orte | 675.56 mi (1,087.21 km) |
| Stara Zagora to Ortona | 573.69 mi (923.26 km) |
| Stara Zagora to Orvieto | 688.43 mi (1,107.92 km) |
| Stara Zagora to Orzinuovi | 807.19 mi (1,299.04 km) |
| Stara Zagora to Osimo | 618.92 mi (996.05 km) |
| Stara Zagora to Ospitaletto | 802.28 mi (1,291.15 km) |
| Stara Zagora to Ostuni | 432.93 mi (696.74 km) |
| Stara Zagora to Ottaviano | 586.71 mi (944.22 km) |
| Stara Zagora to Ovada | 863.56 mi (1,389.76 km) |
| Stara Zagora to Ozieri | 869.28 mi (1,398.97 km) |
| Stara Zagora to Paceco | 755.47 mi (1,215.80 km) |
| Stara Zagora to Pachino | 685.95 mi (1,103.93 km) |
