| Saco to Smolyan | 4,552.92 mi (7,327.22 km) |
| Saco to Sofia | 4,450.37 mi (7,162.18 km) |
| Saco to Sopot | 4,510.04 mi (7,258.21 km) |
| Saco to Sozopol | 4,638.17 mi (7,464.41 km) |
| Saco to Sredets | 4,621.15 mi (7,437.02 km) |
| Saco to Stamboliyski | 4,522.94 mi (7,278.98 km) |
| Saco to Stara Zagora | 4,555.47 mi (7,331.32 km) |
| Saco to Svilengrad | 4,606.08 mi (7,412.77 km) |
| Saco to Svishtov | 4,493.59 mi (7,231.73 km) |
| Saco to Targovishte | 4,558.05 mi (7,335.48 km) |
| Saco to Teteven | 4,479.38 mi (7,208.86 km) |
| Saco to Troyan | 4,498.92 mi (7,240.32 km) |
| Saco to Tryavna | 4,531.10 mi (7,292.10 km) |
| Saco to Tutrakan | 4,525.42 mi (7,282.96 km) |
| Saco to Varna | 4,612.12 mi (7,422.48 km) |
