| Stone Ridge to Smolyan | 5,039.01 mi (8,109.50 km) |
| Stone Ridge to Sofia | 4,936.59 mi (7,944.67 km) |
| Stone Ridge to Sopot | 4,996.49 mi (8,041.07 km) |
| Stone Ridge to Sozopol | 5,124.89 mi (8,247.71 km) |
| Stone Ridge to Sredets | 5,107.82 mi (8,220.25 km) |
| Stone Ridge to Stamboliyski | 5,009.20 mi (8,061.52 km) |
| Stone Ridge to Stara Zagora | 5,041.99 mi (8,114.30 km) |
| Stone Ridge to Svilengrad | 5,092.51 mi (8,195.61 km) |
| Stone Ridge to Svishtov | 4,980.30 mi (8,015.01 km) |
| Stone Ridge to Targovishte | 5,044.80 mi (8,118.82 km) |
| Stone Ridge to Teteven | 4,965.82 mi (7,991.72 km) |
| Stone Ridge to Troyan | 4,985.43 mi (8,023.27 km) |
| Stone Ridge to Tryavna | 5,017.70 mi (8,075.20 km) |
| Stone Ridge to Tutrakan | 5,012.21 mi (8,066.37 km) |
| Stone Ridge to Varna | 5,098.90 mi (8,205.89 km) |
