| Alum Rock to Smolyan | 6,587.12 mi (10,600.95 km) |
| Alum Rock to Sofia | 6,486.71 mi (10,439.35 km) |
| Alum Rock to Sopot | 6,522.06 mi (10,496.23 km) |
| Alum Rock to Sozopol | 6,600.07 mi (10,621.78 km) |
| Alum Rock to Sredets | 6,593.86 mi (10,611.80 km) |
| Alum Rock to Stamboliyski | 6,549.24 mi (10,539.98 km) |
| Alum Rock to Stara Zagora | 6,555.43 mi (10,549.94 km) |
| Alum Rock to Svilengrad | 6,609.11 mi (10,636.33 km) |
| Alum Rock to Svishtov | 6,475.10 mi (10,420.67 km) |
| Alum Rock to Targovishte | 6,524.32 mi (10,499.87 km) |
| Alum Rock to Teteven | 6,494.70 mi (10,452.20 km) |
| Alum Rock to Troyan | 6,506.83 mi (10,471.73 km) |
| Alum Rock to Tryavna | 6,525.10 mi (10,501.13 km) |
| Alum Rock to Tutrakan | 6,474.78 mi (10,420.15 km) |
| Alum Rock to Varna | 6,553.92 mi (10,547.51 km) |
