| Beasain to Smolyan | 1,371.65 mi (2,207.45 km) |
| Beasain to Sofia | 1,287.42 mi (2,071.91 km) |
| Beasain to Sopot | 1,359.05 mi (2,187.18 km) |
| Beasain to Sozopol | 1,509.52 mi (2,429.34 km) |
| Beasain to Sredets | 1,485.50 mi (2,390.68 km) |
| Beasain to Stamboliyski | 1,355.04 mi (2,180.73 km) |
| Beasain to Stara Zagora | 1,406.86 mi (2,264.12 km) |
| Beasain to Svilengrad | 1,444.13 mi (2,324.10 km) |
| Beasain to Svishtov | 1,378.29 mi (2,218.14 km) |
| Beasain to Targovishte | 1,443.28 mi (2,322.73 km) |
| Beasain to Teteven | 1,331.73 mi (2,143.21 km) |
| Beasain to Troyan | 1,354.57 mi (2,179.97 km) |
| Beasain to Tryavna | 1,393.84 mi (2,243.17 km) |
| Beasain to Tutrakan | 1,436.88 mi (2,312.44 km) |
| Beasain to Varna | 1,509.83 mi (2,429.84 km) |
