| Blain to Smolyan | 1,357.95 mi (2,185.42 km) |
| Blain to Sofia | 1,261.64 mi (2,030.41 km) |
| Blain to Sopot | 1,329.06 mi (2,138.92 km) |
| Blain to Sozopol | 1,473.02 mi (2,370.60 km) |
| Blain to Sredets | 1,451.58 mi (2,336.09 km) |
| Blain to Stamboliyski | 1,333.72 mi (2,146.41 km) |
| Blain to Stara Zagora | 1,377.02 mi (2,216.09 km) |
| Blain to Svilengrad | 1,421.96 mi (2,288.43 km) |
| Blain to Svishtov | 1,331.63 mi (2,143.05 km) |
| Blain to Targovishte | 1,398.49 mi (2,250.65 km) |
| Blain to Teteven | 1,299.26 mi (2,090.95 km) |
| Blain to Troyan | 1,321.12 mi (2,126.13 km) |
| Blain to Tryavna | 1,358.06 mi (2,185.59 km) |
| Blain to Tutrakan | 1,380.31 mi (2,221.40 km) |
| Blain to Varna | 1,461.61 mi (2,352.23 km) |
