| Barbastro to Smolyan | 1,261.56 mi (2,030.28 km) |
| Barbastro to Sofia | 1,181.67 mi (1,901.71 km) |
| Barbastro to Sopot | 1,253.76 mi (2,017.73 km) |
| Barbastro to Sozopol | 1,404.77 mi (2,260.76 km) |
| Barbastro to Sredets | 1,380.19 mi (2,221.20 km) |
| Barbastro to Stamboliyski | 1,247.26 mi (2,007.28 km) |
| Barbastro to Stara Zagora | 1,301.05 mi (2,093.84 km) |
| Barbastro to Svilengrad | 1,335.77 mi (2,149.71 km) |
| Barbastro to Svishtov | 1,277.90 mi (2,056.58 km) |
| Barbastro to Targovishte | 1,341.65 mi (2,159.17 km) |
| Barbastro to Teteven | 1,227.47 mi (1,975.43 km) |
| Barbastro to Troyan | 1,250.37 mi (2,012.27 km) |
| Barbastro to Tryavna | 1,289.93 mi (2,075.95 km) |
| Barbastro to Tutrakan | 1,339.05 mi (2,155.00 km) |
| Barbastro to Varna | 1,408.65 mi (2,267.00 km) |
