| Alcoa to Smolyan | 5,445.20 mi (8,763.21 km) |
| Alcoa to Sofia | 5,342.41 mi (8,597.77 km) |
| Alcoa to Sopot | 5,401.45 mi (8,692.80 km) |
| Alcoa to Sozopol | 5,528.05 mi (8,896.54 km) |
| Alcoa to Sredets | 5,511.44 mi (8,869.80 km) |
| Alcoa to Stamboliyski | 5,414.89 mi (8,714.43 km) |
| Alcoa to Stara Zagora | 5,446.61 mi (8,765.47 km) |
| Alcoa to Svilengrad | 5,497.53 mi (8,847.41 km) |
| Alcoa to Svishtov | 5,383.67 mi (8,664.19 km) |
| Alcoa to Targovishte | 5,447.74 mi (8,767.29 km) |
| Alcoa to Teteven | 5,370.80 mi (8,643.47 km) |
| Alcoa to Troyan | 5,390.14 mi (8,674.60 km) |
| Alcoa to Tryavna | 5,421.90 mi (8,725.70 km) |
| Alcoa to Tutrakan | 5,414.07 mi (8,713.11 km) |
| Alcoa to Varna | 5,500.86 mi (8,852.78 km) |
