| Alcira to Smolyan | 1,329.05 mi (2,138.90 km) |
| Alcira to Sofia | 1,260.25 mi (2,028.17 km) |
| Alcira to Sopot | 1,332.15 mi (2,143.89 km) |
| Alcira to Sozopol | 1,482.17 mi (2,385.32 km) |
| Alcira to Sredets | 1,456.71 mi (2,344.35 km) |
| Alcira to Stamboliyski | 1,320.31 mi (2,124.83 km) |
| Alcira to Stara Zagora | 1,377.62 mi (2,217.06 km) |
| Alcira to Svilengrad | 1,406.16 mi (2,262.99 km) |
| Alcira to Svishtov | 1,365.93 mi (2,198.25 km) |
| Alcira to Targovishte | 1,426.31 mi (2,295.42 km) |
| Alcira to Teteven | 1,308.47 mi (2,105.78 km) |
| Alcira to Troyan | 1,331.10 mi (2,142.21 km) |
| Alcira to Tryavna | 1,370.69 mi (2,205.91 km) |
| Alcira to Tutrakan | 1,431.10 mi (2,303.13 km) |
| Alcira to Varna | 1,493.33 mi (2,403.29 km) |
