| Belfort to Smolyan | 969.57 mi (1,560.37 km) |
| Belfort to Sofia | 870.10 mi (1,400.29 km) |
| Belfort to Sopot | 935.28 mi (1,505.18 km) |
| Belfort to Sozopol | 1,076.22 mi (1,732.01 km) |
| Belfort to Sredets | 1,055.57 mi (1,698.78 km) |
| Belfort to Stamboliyski | 942.79 mi (1,517.27 km) |
| Belfort to Stara Zagora | 982.78 mi (1,581.63 km) |
| Belfort to Svilengrad | 1,029.70 mi (1,657.14 km) |
| Belfort to Svishtov | 933.47 mi (1,502.28 km) |
| Belfort to Targovishte | 1,000.30 mi (1,609.83 km) |
| Belfort to Teteven | 905.03 mi (1,456.51 km) |
| Belfort to Troyan | 926.37 mi (1,490.85 km) |
| Belfort to Tryavna | 962.31 mi (1,548.69 km) |
| Belfort to Tutrakan | 980.19 mi (1,577.47 km) |
| Belfort to Varna | 1,062.45 mi (1,709.84 km) |
