| Montrose to Smolyan | 1,593.59 mi (2,564.64 km) |
| Montrose to Sofia | 1,489.37 mi (2,396.90 km) |
| Montrose to Sopot | 1,539.31 mi (2,477.29 km) |
| Montrose to Sozopol | 1,652.15 mi (2,658.88 km) |
| Montrose to Sredets | 1,638.23 mi (2,636.48 km) |
| Montrose to Stamboliyski | 1,559.01 mi (2,508.99 km) |
| Montrose to Stara Zagora | 1,580.92 mi (2,544.25 km) |
| Montrose to Svilengrad | 1,634.12 mi (2,629.87 km) |
| Montrose to Svishtov | 1,510.46 mi (2,430.85 km) |
| Montrose to Targovishte | 1,571.45 mi (2,529.00 km) |
| Montrose to Teteven | 1,509.27 mi (2,428.94 km) |
| Montrose to Troyan | 1,526.15 mi (2,456.09 km) |
| Montrose to Tryavna | 1,553.56 mi (2,500.21 km) |
| Montrose to Tutrakan | 1,533.03 mi (2,467.17 km) |
| Montrose to Varna | 1,619.67 mi (2,606.61 km) |
