| East San Gabriel to Smolyan | 6,698.09 mi (10,779.54 km) |
| East San Gabriel to Sofia | 6,595.89 mi (10,615.06 km) |
| East San Gabriel to Sopot | 6,635.72 mi (10,679.15 km) |
| East San Gabriel to Sozopol | 6,722.84 mi (10,819.37 km) |
| East San Gabriel to Sredets | 6,714.85 mi (10,806.51 km) |
| East San Gabriel to Stamboliyski | 6,660.96 mi (10,719.78 km) |
| East San Gabriel to Stara Zagora | 6,671.52 mi (10,736.77 km) |
| East San Gabriel to Svilengrad | 6,725.48 mi (10,823.62 km) |
| East San Gabriel to Svishtov | 6,592.95 mi (10,610.32 km) |
| East San Gabriel to Targovishte | 6,645.29 mi (10,694.56 km) |
| East San Gabriel to Teteven | 6,607.43 mi (10,633.62 km) |
| East San Gabriel to Troyan | 6,620.94 mi (10,655.37 km) |
| East San Gabriel to Tryavna | 6,641.70 mi (10,688.78 km) |
| East San Gabriel to Tutrakan | 6,597.63 mi (10,617.87 km) |
| East San Gabriel to Varna | 6,679.12 mi (10,749.01 km) |
