| Olhao to Smolyan | 1,757.26 mi (2,828.04 km) |
| Olhao to Sofia | 1,688.67 mi (2,717.64 km) |
| Olhao to Sopot | 1,760.60 mi (2,833.42 km) |
| Olhao to Sozopol | 1,910.66 mi (3,074.91 km) |
| Olhao to Sredets | 1,885.20 mi (3,033.93 km) |
| Olhao to Stamboliyski | 1,748.77 mi (2,814.38 km) |
| Olhao to Stara Zagora | 1,806.10 mi (2,906.64 km) |
| Olhao to Svilengrad | 1,834.49 mi (2,952.32 km) |
| Olhao to Svishtov | 1,793.73 mi (2,886.73 km) |
| Olhao to Targovishte | 1,854.48 mi (2,984.50 km) |
| Olhao to Teteven | 1,736.81 mi (2,795.12 km) |
| Olhao to Troyan | 1,759.47 mi (2,831.59 km) |
| Olhao to Tryavna | 1,799.07 mi (2,895.32 km) |
| Olhao to Tutrakan | 1,858.44 mi (2,990.87 km) |
| Olhao to Varna | 1,921.55 mi (3,092.43 km) |
