| Andernach to Smolyan | 1,027.12 mi (1,652.98 km) |
| Andernach to Sofia | 923.40 mi (1,486.06 km) |
| Andernach to Sopot | 980.84 mi (1,578.51 km) |
| Andernach to Sozopol | 1,109.06 mi (1,784.86 km) |
| Andernach to Sredets | 1,091.54 mi (1,756.67 km) |
| Andernach to Stamboliyski | 995.41 mi (1,601.96 km) |
| Andernach to Stara Zagora | 1,025.85 mi (1,650.94 km) |
| Andernach to Svilengrad | 1,076.92 mi (1,733.13 km) |
| Andernach to Svishtov | 964.30 mi (1,551.90 km) |
| Andernach to Targovishte | 1,029.39 mi (1,656.64 km) |
| Andernach to Teteven | 950.20 mi (1,529.20 km) |
| Andernach to Troyan | 969.40 mi (1,560.10 km) |
| Andernach to Tryavna | 1,001.29 mi (1,611.42 km) |
| Andernach to Tutrakan | 999.65 mi (1,608.79 km) |
| Andernach to Varna | 1,085.69 mi (1,747.25 km) |
