| Grevenmacher to Smolyan | 1,040.41 mi (1,674.37 km) |
| Grevenmacher to Sofia | 937.67 mi (1,509.04 km) |
| Grevenmacher to Sopot | 998.01 mi (1,606.14 km) |
| Grevenmacher to Sozopol | 1,130.94 mi (1,820.07 km) |
| Grevenmacher to Sredets | 1,112.34 mi (1,790.13 km) |
| Grevenmacher to Stamboliyski | 1,010.26 mi (1,625.85 km) |
| Grevenmacher to Stara Zagora | 1,044.04 mi (1,680.22 km) |
| Grevenmacher to Svilengrad | 1,093.92 mi (1,760.49 km) |
| Grevenmacher to Svishtov | 986.25 mi (1,587.22 km) |
| Grevenmacher to Targovishte | 1,052.18 mi (1,693.33 km) |
| Grevenmacher to Teteven | 967.36 mi (1,556.81 km) |
| Grevenmacher to Troyan | 987.36 mi (1,589.01 km) |
| Grevenmacher to Tryavna | 1,020.74 mi (1,642.72 km) |
| Grevenmacher to Tutrakan | 1,025.40 mi (1,650.23 km) |
| Grevenmacher to Varna | 1,110.58 mi (1,787.30 km) |
