| Saint-Gilles to Smolyan | 1,037.81 mi (1,670.20 km) |
| Saint-Gilles to Sofia | 952.38 mi (1,532.70 km) |
| Saint-Gilles to Sopot | 1,023.89 mi (1,647.80 km) |
| Saint-Gilles to Sozopol | 1,174.27 mi (1,889.81 km) |
| Saint-Gilles to Sredets | 1,150.31 mi (1,851.25 km) |
| Saint-Gilles to Stamboliyski | 1,020.41 mi (1,642.19 km) |
| Saint-Gilles to Stara Zagora | 1,071.76 mi (1,724.84 km) |
| Saint-Gilles to Svilengrad | 1,109.60 mi (1,785.73 km) |
| Saint-Gilles to Svishtov | 1,043.09 mi (1,678.69 km) |
| Saint-Gilles to Targovishte | 1,107.99 mi (1,783.13 km) |
| Saint-Gilles to Teteven | 996.47 mi (1,603.66 km) |
| Saint-Gilles to Troyan | 1,019.30 mi (1,640.41 km) |
| Saint-Gilles to Tryavna | 1,058.54 mi (1,703.56 km) |
| Saint-Gilles to Tutrakan | 1,102.14 mi (1,773.72 km) |
| Saint-Gilles to Varna | 1,174.58 mi (1,890.30 km) |
