| Spring Hill to Smolyan | 5,735.26 mi (9,230.01 km) |
| Spring Hill to Sofia | 5,634.98 mi (9,068.62 km) |
| Spring Hill to Sopot | 5,698.16 mi (9,170.30 km) |
| Spring Hill to Sozopol | 5,832.78 mi (9,386.96 km) |
| Spring Hill to Sredets | 5,814.17 mi (9,357.00 km) |
| Spring Hill to Stamboliyski | 5,707.77 mi (9,185.77 km) |
| Spring Hill to Stara Zagora | 5,744.86 mi (9,245.45 km) |
| Spring Hill to Svilengrad | 5,793.57 mi (9,323.84 km) |
| Spring Hill to Svishtov | 5,688.05 mi (9,154.04 km) |
| Spring Hill to Targovishte | 5,753.78 mi (9,259.82 km) |
| Spring Hill to Teteven | 5,667.61 mi (9,121.14 km) |
| Spring Hill to Troyan | 5,688.16 mi (9,154.20 km) |
| Spring Hill to Tryavna | 5,722.27 mi (9,209.10 km) |
| Spring Hill to Tutrakan | 5,724.90 mi (9,213.33 km) |
| Spring Hill to Varna | 5,810.92 mi (9,351.76 km) |
