| Negresti-Oas to Smolyan | 438.80 mi (706.18 km) |
| Negresti-Oas to Sofia | 357.20 mi (574.86 km) |
| Negresti-Oas to Sopot | 366.33 mi (589.55 km) |
| Negresti-Oas to Sozopol | 430.37 mi (692.61 km) |
| Negresti-Oas to Sredets | 423.34 mi (681.30 km) |
| Negresti-Oas to Stamboliyski | 400.00 mi (643.74 km) |
| Negresti-Oas to Stara Zagora | 390.90 mi (629.09 km) |
| Negresti-Oas to Svilengrad | 442.98 mi (712.91 km) |
| Negresti-Oas to Svishtov | 308.13 mi (495.89 km) |
| Negresti-Oas to Targovishte | 353.79 mi (569.38 km) |
| Negresti-Oas to Teteven | 344.63 mi (554.62 km) |
| Negresti-Oas to Troyan | 350.16 mi (563.52 km) |
| Negresti-Oas to Tryavna | 359.99 mi (579.35 km) |
| Negresti-Oas to Tutrakan | 305.15 mi (491.08 km) |
| Negresti-Oas to Varna | 387.92 mi (624.30 km) |
