| Alcarraz to Smolyan | 1,245.51 mi (2,004.45 km) |
| Alcarraz to Sofia | 1,167.65 mi (1,879.14 km) |
| Alcarraz to Sopot | 1,239.83 mi (1,995.32 km) |
| Alcarraz to Sozopol | 1,390.88 mi (2,238.41 km) |
| Alcarraz to Sredets | 1,366.09 mi (2,198.50 km) |
| Alcarraz to Stamboliyski | 1,232.27 mi (1,983.14 km) |
| Alcarraz to Stara Zagora | 1,286.84 mi (2,070.97 km) |
| Alcarraz to Svilengrad | 1,320.40 mi (2,124.97 km) |
| Alcarraz to Svishtov | 1,265.99 mi (2,037.42 km) |
| Alcarraz to Targovishte | 1,329.14 mi (2,139.04 km) |
| Alcarraz to Teteven | 1,214.03 mi (1,953.79 km) |
| Alcarraz to Troyan | 1,236.91 mi (1,990.61 km) |
| Alcarraz to Tryavna | 1,276.54 mi (2,054.40 km) |
| Alcarraz to Tutrakan | 1,328.09 mi (2,137.36 km) |
| Alcarraz to Varna | 1,396.24 mi (2,247.03 km) |
