| Wermelskirchen to Smolyan | 1,059.22 mi (1,704.65 km) |
| Wermelskirchen to Sofia | 955.15 mi (1,537.17 km) |
| Wermelskirchen to Sopot | 1,010.77 mi (1,626.67 km) |
| Wermelskirchen to Sozopol | 1,135.76 mi (1,827.83 km) |
| Wermelskirchen to Sredets | 1,118.99 mi (1,800.83 km) |
| Wermelskirchen to Stamboliyski | 1,026.69 mi (1,652.29 km) |
| Wermelskirchen to Stara Zagora | 1,055.05 mi (1,697.94 km) |
| Wermelskirchen to Svilengrad | 1,106.75 mi (1,781.14 km) |
| Wermelskirchen to Svishtov | 991.26 mi (1,595.28 km) |
| Wermelskirchen to Targovishte | 1,055.64 mi (1,698.89 km) |
| Wermelskirchen to Teteven | 980.20 mi (1,577.48 km) |
| Wermelskirchen to Troyan | 998.87 mi (1,607.52 km) |
| Wermelskirchen to Tryavna | 1,029.76 mi (1,657.24 km) |
| Wermelskirchen to Tutrakan | 1,023.97 mi (1,647.92 km) |
| Wermelskirchen to Varna | 1,110.42 mi (1,787.05 km) |
