| Atwater to Smolyan | 6,559.77 mi (10,556.94 km) |
| Atwater to Sofia | 6,458.93 mi (10,394.65 km) |
| Atwater to Sopot | 6,495.26 mi (10,453.10 km) |
| Atwater to Sozopol | 6,575.30 mi (10,581.92 km) |
| Atwater to Sredets | 6,568.70 mi (10,571.30 km) |
| Atwater to Stamboliyski | 6,522.03 mi (10,496.20 km) |
| Atwater to Stara Zagora | 6,529.17 mi (10,507.69 km) |
| Atwater to Svilengrad | 6,582.94 mi (10,594.21 km) |
| Atwater to Svishtov | 6,449.19 mi (10,378.97 km) |
| Atwater to Targovishte | 6,499.12 mi (10,459.32 km) |
| Atwater to Teteven | 6,467.68 mi (10,408.73 km) |
| Atwater to Troyan | 6,480.12 mi (10,428.75 km) |
| Atwater to Tryavna | 6,498.94 mi (10,459.03 km) |
| Atwater to Tutrakan | 6,449.97 mi (10,380.23 km) |
| Atwater to Varna | 6,529.67 mi (10,508.50 km) |
