| Boscoreale to Smolyan | 534.01 mi (859.40 km) |
| Boscoreale to Sofia | 475.04 mi (764.50 km) |
| Boscoreale to Sopot | 544.94 mi (876.99 km) |
| Boscoreale to Sozopol | 691.68 mi (1,113.15 km) |
| Boscoreale to Sredets | 665.85 mi (1,071.58 km) |
| Boscoreale to Stamboliyski | 528.63 mi (850.75 km) |
| Boscoreale to Stara Zagora | 587.88 mi (946.09 km) |
| Boscoreale to Svilengrad | 611.92 mi (984.79 km) |
| Boscoreale to Svishtov | 589.56 mi (948.81 km) |
| Boscoreale to Targovishte | 643.81 mi (1,036.11 km) |
| Boscoreale to Teteven | 524.68 mi (844.40 km) |
| Boscoreale to Troyan | 546.41 mi (879.36 km) |
| Boscoreale to Tryavna | 585.08 mi (941.59 km) |
| Boscoreale to Tutrakan | 658.48 mi (1,059.72 km) |
| Boscoreale to Varna | 709.45 mi (1,141.75 km) |
