| Forest Hill to Smolyan | 6,120.17 mi (9,849.47 km) |
| Forest Hill to Sofia | 6,016.10 mi (9,681.97 km) |
| Forest Hill to Sopot | 6,070.43 mi (9,769.41 km) |
| Forest Hill to Sozopol | 6,187.37 mi (9,957.62 km) |
| Forest Hill to Sredets | 6,173.04 mi (9,934.55 km) |
| Forest Hill to Stamboliyski | 6,087.48 mi (9,796.85 km) |
| Forest Hill to Stara Zagora | 6,113.52 mi (9,838.76 km) |
| Forest Hill to Svilengrad | 6,166.07 mi (9,923.33 km) |
| Forest Hill to Svishtov | 6,045.07 mi (9,728.61 km) |
| Forest Hill to Targovishte | 6,106.65 mi (9,827.71 km) |
| Forest Hill to Teteven | 6,040.02 mi (9,720.47 km) |
| Forest Hill to Troyan | 6,057.94 mi (9,749.32 km) |
| Forest Hill to Tryavna | 6,086.96 mi (9,796.02 km) |
| Forest Hill to Tutrakan | 6,068.32 mi (9,766.01 km) |
| Forest Hill to Varna | 6,154.88 mi (9,905.33 km) |
