| Monistrol-sur-Loire to Smolyan | 1,058.10 mi (1,702.85 km) |
| Monistrol-sur-Loire to Sofia | 966.52 mi (1,555.46 km) |
| Monistrol-sur-Loire to Sopot | 1,036.44 mi (1,667.99 km) |
| Monistrol-sur-Loire to Sozopol | 1,184.56 mi (1,906.37 km) |
| Monistrol-sur-Loire to Sredets | 1,161.68 mi (1,869.55 km) |
| Monistrol-sur-Loire to Stamboliyski | 1,037.04 mi (1,668.96 km) |
| Monistrol-sur-Loire to Stara Zagora | 1,084.64 mi (1,745.56 km) |
| Monistrol-sur-Loire to Svilengrad | 1,126.23 mi (1,812.49 km) |
| Monistrol-sur-Loire to Svishtov | 1,047.81 mi (1,686.29 km) |
| Monistrol-sur-Loire to Targovishte | 1,114.04 mi (1,792.88 km) |
| Monistrol-sur-Loire to Teteven | 1,007.66 mi (1,621.68 km) |
| Monistrol-sur-Loire to Troyan | 1,030.17 mi (1,657.90 km) |
| Monistrol-sur-Loire to Tryavna | 1,068.55 mi (1,719.66 km) |
| Monistrol-sur-Loire to Tutrakan | 1,102.58 mi (1,774.44 km) |
| Monistrol-sur-Loire to Varna | 1,179.44 mi (1,898.13 km) |
