| Massy to Smolyan | 1,193.36 mi (1,920.52 km) |
| Massy to Sofia | 1,093.53 mi (1,759.86 km) |
| Massy to Sopot | 1,158.11 mi (1,863.80 km) |
| Massy to Sozopol | 1,297.62 mi (2,088.32 km) |
| Massy to Sredets | 1,277.41 mi (2,055.80 km) |
| Massy to Stamboliyski | 1,166.27 mi (1,876.92 km) |
| Massy to Stara Zagora | 1,205.42 mi (1,939.94 km) |
| Massy to Svilengrad | 1,252.85 mi (2,016.27 km) |
| Massy to Svishtov | 1,154.15 mi (1,857.43 km) |
| Massy to Targovishte | 1,220.86 mi (1,964.78 km) |
| Massy to Teteven | 1,127.76 mi (1,814.95 km) |
| Massy to Troyan | 1,148.89 mi (1,848.96 km) |
| Massy to Tryavna | 1,184.38 mi (1,906.08 km) |
| Massy to Tutrakan | 1,198.67 mi (1,929.07 km) |
| Massy to Varna | 1,282.02 mi (2,063.21 km) |
