| Herrin to Smolyan | 5,546.46 mi (8,926.17 km) |
| Herrin to Sofia | 5,442.63 mi (8,759.06 km) |
| Herrin to Sopot | 5,498.34 mi (8,848.72 km) |
| Herrin to Sozopol | 5,618.28 mi (9,041.75 km) |
| Herrin to Sredets | 5,603.24 mi (9,017.54 km) |
| Herrin to Stamboliyski | 5,514.39 mi (8,874.55 km) |
| Herrin to Stara Zagora | 5,542.07 mi (8,919.10 km) |
| Herrin to Svilengrad | 5,594.21 mi (9,003.01 km) |
| Herrin to Svishtov | 5,475.17 mi (8,811.43 km) |
| Herrin to Targovishte | 5,537.58 mi (8,911.88 km) |
| Herrin to Teteven | 5,467.82 mi (8,799.60 km) |
| Herrin to Troyan | 5,486.17 mi (8,829.14 km) |
| Herrin to Tryavna | 5,516.02 mi (8,877.17 km) |
| Herrin to Tutrakan | 5,500.65 mi (8,852.43 km) |
| Herrin to Varna | 5,587.40 mi (8,992.05 km) |
