| Stanford to Smolyan | 6,591.39 mi (10,607.82 km) |
| Stanford to Sofia | 6,491.12 mi (10,446.44 km) |
| Stanford to Sopot | 6,526.16 mi (10,502.84 km) |
| Stanford to Sozopol | 6,603.55 mi (10,627.39 km) |
| Stanford to Sredets | 6,597.47 mi (10,617.60 km) |
| Stanford to Stamboliyski | 6,553.46 mi (10,546.78 km) |
| Stanford to Stara Zagora | 6,559.37 mi (10,556.28 km) |
| Stanford to Svilengrad | 6,613.02 mi (10,642.62 km) |
| Stanford to Svishtov | 6,478.93 mi (10,426.84 km) |
| Stanford to Targovishte | 6,527.93 mi (10,505.69 km) |
| Stanford to Teteven | 6,498.87 mi (10,458.92 km) |
| Stanford to Troyan | 6,510.91 mi (10,478.30 km) |
| Stanford to Tryavna | 6,529.01 mi (10,507.42 km) |
| Stanford to Tutrakan | 6,478.28 mi (10,425.78 km) |
| Stanford to Varna | 6,557.25 mi (10,552.87 km) |
