| Montesson to Smolyan | 1,202.11 mi (1,934.61 km) |
| Montesson to Sofia | 1,102.01 mi (1,773.51 km) |
| Montesson to Sopot | 1,166.28 mi (1,876.94 km) |
| Montesson to Sozopol | 1,305.26 mi (2,100.61 km) |
| Montesson to Sredets | 1,285.20 mi (2,068.32 km) |
| Montesson to Stamboliyski | 1,174.77 mi (1,890.61 km) |
| Montesson to Stara Zagora | 1,213.50 mi (1,952.95 km) |
| Montesson to Svilengrad | 1,261.16 mi (2,029.64 km) |
| Montesson to Svishtov | 1,161.62 mi (1,869.45 km) |
| Montesson to Targovishte | 1,228.28 mi (1,976.72 km) |
| Montesson to Teteven | 1,135.89 mi (1,828.03 km) |
| Montesson to Troyan | 1,156.93 mi (1,861.90 km) |
| Montesson to Tryavna | 1,192.26 mi (1,918.75 km) |
| Montesson to Tutrakan | 1,205.61 mi (1,940.23 km) |
| Montesson to Varna | 1,289.18 mi (2,074.74 km) |
