| Ballwin to Smolyan | 5,563.60 mi (8,953.75 km) |
| Ballwin to Sofia | 5,459.55 mi (8,786.29 km) |
| Ballwin to Sopot | 5,514.08 mi (8,874.06 km) |
| Ballwin to Sozopol | 5,631.69 mi (9,063.32 km) |
| Ballwin to Sredets | 5,617.18 mi (9,039.97 km) |
| Ballwin to Stamboliyski | 5,530.98 mi (8,901.25 km) |
| Ballwin to Stara Zagora | 5,557.30 mi (8,943.61 km) |
| Ballwin to Svilengrad | 5,609.77 mi (9,028.06 km) |
| Ballwin to Svishtov | 5,489.17 mi (8,833.97 km) |
| Ballwin to Targovishte | 5,550.96 mi (8,933.41 km) |
| Ballwin to Teteven | 5,483.65 mi (8,825.09 km) |
| Ballwin to Troyan | 5,501.66 mi (8,854.06 km) |
| Ballwin to Tryavna | 5,530.83 mi (8,901.02 km) |
| Ballwin to Tutrakan | 5,513.00 mi (8,872.31 km) |
| Ballwin to Varna | 5,599.63 mi (9,011.73 km) |
