| Summerville to Smolyan | 5,419.62 mi (8,722.04 km) |
| Summerville to Sofia | 5,318.43 mi (8,559.19 km) |
| Summerville to Sopot | 5,380.42 mi (8,658.96 km) |
| Summerville to Sozopol | 5,512.81 mi (8,872.01 km) |
| Summerville to Sredets | 5,494.76 mi (8,842.97 km) |
| Summerville to Stamboliyski | 5,391.22 mi (8,676.33 km) |
| Summerville to Stara Zagora | 5,426.71 mi (8,733.44 km) |
| Summerville to Svilengrad | 5,476.15 mi (8,813.01 km) |
| Summerville to Svishtov | 5,368.01 mi (8,638.98 km) |
| Summerville to Targovishte | 5,433.33 mi (8,744.11 km) |
| Summerville to Teteven | 5,349.81 mi (8,609.68 km) |
| Summerville to Troyan | 5,370.01 mi (8,642.20 km) |
| Summerville to Tryavna | 5,403.46 mi (8,696.02 km) |
| Summerville to Tutrakan | 5,403.04 mi (8,695.35 km) |
| Summerville to Varna | 5,489.37 mi (8,834.29 km) |
