| Borre to Smolyan | 1,373.29 mi (2,210.10 km) |
| Borre to Sofia | 1,275.89 mi (2,053.35 km) |
| Borre to Sopot | 1,306.04 mi (2,101.86 km) |
| Borre to Sozopol | 1,383.10 mi (2,225.88 km) |
| Borre to Sredets | 1,376.12 mi (2,214.65 km) |
| Borre to Stamboliyski | 1,334.82 mi (2,148.19 km) |
| Borre to Stara Zagora | 1,337.91 mi (2,153.16 km) |
| Borre to Svilengrad | 1,391.42 mi (2,239.27 km) |
| Borre to Svishtov | 1,257.14 mi (2,023.17 km) |
| Borre to Targovishte | 1,306.53 mi (2,102.66 km) |
| Borre to Teteven | 1,279.58 mi (2,059.29 km) |
| Borre to Troyan | 1,290.53 mi (2,076.91 km) |
| Borre to Tryavna | 1,307.43 mi (2,104.11 km) |
| Borre to Tutrakan | 1,257.78 mi (2,024.20 km) |
| Borre to Varna | 1,338.71 mi (2,154.45 km) |
