| Eupen to Sofia | 982.67 mi (1,581.46 km) |
| Eupen to Sopot | 1,040.80 mi (1,675.00 km) |
| Eupen to Sozopol | 1,169.89 mi (1,882.76 km) |
| Eupen to Sredets | 1,152.21 mi (1,854.30 km) |
| Eupen to Stamboliyski | 1,054.86 mi (1,697.63 km) |
| Eupen to Stara Zagora | 1,086.03 mi (1,747.80 km) |
| Eupen to Svilengrad | 1,136.87 mi (1,829.62 km) |
| Eupen to Svishtov | 1,025.11 mi (1,649.76 km) |
| Eupen to Targovishte | 1,090.33 mi (1,754.72 km) |
| Eupen to Teteven | 1,010.14 mi (1,625.67 km) |
| Eupen to Troyan | 1,029.52 mi (1,656.85 km) |
| Eupen to Tryavna | 1,061.70 mi (1,708.64 km) |
| Eupen to Tutrakan | 1,060.93 mi (1,707.40 km) |
| Eupen to Varna | 1,146.90 mi (1,845.75 km) |
| Eupen to Veliki Preslav | 1,103.27 mi (1,775.54 km) |
