| Onnaing to Smolyan | 1,175.52 mi (1,891.82 km) |
| Onnaing to Sofia | 1,072.90 mi (1,726.67 km) |
| Onnaing to Sopot | 1,133.33 mi (1,823.91 km) |
| Onnaing to Sozopol | 1,265.96 mi (2,037.36 km) |
| Onnaing to Sredets | 1,247.48 mi (2,007.62 km) |
| Onnaing to Stamboliyski | 1,145.51 mi (1,843.52 km) |
| Onnaing to Stara Zagora | 1,179.35 mi (1,897.97 km) |
| Onnaing to Svilengrad | 1,229.24 mi (1,978.27 km) |
| Onnaing to Svishtov | 1,121.23 mi (1,804.45 km) |
| Onnaing to Targovishte | 1,187.05 mi (1,910.37 km) |
| Onnaing to Teteven | 1,102.68 mi (1,774.59 km) |
| Onnaing to Troyan | 1,122.67 mi (1,806.76 km) |
| Onnaing to Tryavna | 1,155.98 mi (1,860.37 km) |
| Onnaing to Tutrakan | 1,159.65 mi (1,866.28 km) |
| Onnaing to Varna | 1,245.06 mi (2,003.73 km) |
