| Basingstoke to Smolyan | 1,388.20 mi (2,234.10 km) |
| Basingstoke to Sofia | 1,285.81 mi (2,069.31 km) |
| Basingstoke to Sopot | 1,346.54 mi (2,167.04 km) |
| Basingstoke to Sozopol | 1,479.14 mi (2,380.45 km) |
| Basingstoke to Sredets | 1,460.73 mi (2,350.82 km) |
| Basingstoke to Stamboliyski | 1,358.47 mi (2,186.24 km) |
| Basingstoke to Stara Zagora | 1,392.61 mi (2,241.18 km) |
| Basingstoke to Svilengrad | 1,442.42 mi (2,321.35 km) |
| Basingstoke to Svishtov | 1,334.39 mi (2,147.50 km) |
| Basingstoke to Targovishte | 1,400.13 mi (2,253.30 km) |
| Basingstoke to Teteven | 1,315.89 mi (2,117.72 km) |
| Basingstoke to Troyan | 1,335.92 mi (2,149.96 km) |
| Basingstoke to Tryavna | 1,369.26 mi (2,203.61 km) |
| Basingstoke to Tutrakan | 1,372.22 mi (2,208.38 km) |
| Basingstoke to Varna | 1,457.82 mi (2,346.14 km) |
