| Montreux to Smolyan | 942.59 mi (1,516.95 km) |
| Montreux to Sofia | 846.28 mi (1,361.96 km) |
| Montreux to Sopot | 914.01 mi (1,470.96 km) |
| Montreux to Sozopol | 1,058.96 mi (1,704.23 km) |
| Montreux to Sredets | 1,037.15 mi (1,669.13 km) |
| Montreux to Stamboliyski | 918.30 mi (1,477.86 km) |
| Montreux to Stara Zagora | 962.04 mi (1,548.26 km) |
| Montreux to Svilengrad | 1,006.62 mi (1,620.00 km) |
| Montreux to Svishtov | 918.72 mi (1,478.54 km) |
| Montreux to Targovishte | 985.49 mi (1,585.99 km) |
| Montreux to Teteven | 884.34 mi (1,423.21 km) |
| Montreux to Troyan | 906.34 mi (1,458.61 km) |
| Montreux to Tryavna | 943.61 mi (1,518.60 km) |
| Montreux to Tutrakan | 969.81 mi (1,560.76 km) |
| Montreux to Varna | 1,049.50 mi (1,689.00 km) |
