| Saint-Gaudens to Smolyan | 1,224.73 mi (1,971.01 km) |
| Saint-Gaudens to Sofia | 1,141.01 mi (1,836.28 km) |
| Saint-Gaudens to Sopot | 1,212.74 mi (1,951.71 km) |
| Saint-Gaudens to Sozopol | 1,363.35 mi (2,194.11 km) |
| Saint-Gaudens to Sredets | 1,339.22 mi (2,155.27 km) |
| Saint-Gaudens to Stamboliyski | 1,208.36 mi (1,944.67 km) |
| Saint-Gaudens to Stara Zagora | 1,260.47 mi (2,028.54 km) |
| Saint-Gaudens to Svilengrad | 1,297.40 mi (2,087.96 km) |
| Saint-Gaudens to Svishtov | 1,233.02 mi (1,984.35 km) |
| Saint-Gaudens to Targovishte | 1,297.74 mi (2,088.51 km) |
| Saint-Gaudens to Teteven | 1,185.59 mi (1,908.03 km) |
| Saint-Gaudens to Troyan | 1,208.45 mi (1,944.82 km) |
| Saint-Gaudens to Tryavna | 1,247.79 mi (2,008.13 km) |
| Saint-Gaudens to Tutrakan | 1,292.33 mi (2,079.81 km) |
| Saint-Gaudens to Varna | 1,364.43 mi (2,195.83 km) |
