| Chateaubriant to Smolyan | 1,342.46 mi (2,160.48 km) |
| Chateaubriant to Sofia | 1,245.57 mi (2,004.54 km) |
| Chateaubriant to Sopot | 1,312.60 mi (2,112.43 km) |
| Chateaubriant to Sozopol | 1,455.95 mi (2,343.12 km) |
| Chateaubriant to Sredets | 1,434.69 mi (2,308.91 km) |
| Chateaubriant to Stamboliyski | 1,317.79 mi (2,120.77 km) |
| Chateaubriant to Stara Zagora | 1,360.49 mi (2,189.49 km) |
| Chateaubriant to Svilengrad | 1,405.83 mi (2,262.47 km) |
| Chateaubriant to Svishtov | 1,314.17 mi (2,114.95 km) |
| Chateaubriant to Targovishte | 1,381.03 mi (2,222.56 km) |
| Chateaubriant to Teteven | 1,282.70 mi (2,064.30 km) |
| Chateaubriant to Troyan | 1,304.46 mi (2,099.33 km) |
| Chateaubriant to Tryavna | 1,341.20 mi (2,158.46 km) |
| Chateaubriant to Tutrakan | 1,362.21 mi (2,192.26 km) |
| Chateaubriant to Varna | 1,443.86 mi (2,323.67 km) |
