| Stara Zagora to Oberriet | 854.67 mi (1,375.46 km) |
| Stara Zagora to Obersiggenthal | 915.14 mi (1,472.77 km) |
| Stara Zagora to Oberwil | 948.80 mi (1,526.94 km) |
| Stara Zagora to Oberwingert | 894.38 mi (1,439.37 km) |
| Stara Zagora to Oftringen | 928.94 mi (1,494.98 km) |
| Stara Zagora to Olten | 930.28 mi (1,497.14 km) |
| Stara Zagora to Onex | 997.86 mi (1,605.90 km) |
| Stara Zagora to Opfikon | 901.79 mi (1,451.28 km) |
| Stara Zagora to Ostermundigen | 942.50 mi (1,516.81 km) |
| Stara Zagora to Payerne | 966.18 mi (1,554.92 km) |
| Stara Zagora to Pfaffikon | 890.77 mi (1,433.56 km) |
| Stara Zagora to Plan-les-Ouates | 996.91 mi (1,604.37 km) |
| Stara Zagora to Pratteln | 942.31 mi (1,516.49 km) |
| Stara Zagora to Prilly | 978.07 mi (1,574.06 km) |
| Stara Zagora to Pully | 974.75 mi (1,568.71 km) |
