| Eckernforde to Smolyan | 1,119.84 mi (1,802.21 km) |
| Eckernforde to Sofia | 1,017.13 mi (1,636.92 km) |
| Eckernforde to Sopot | 1,059.68 mi (1,705.38 km) |
| Eckernforde to Sozopol | 1,161.58 mi (1,869.38 km) |
| Eckernforde to Sredets | 1,149.64 mi (1,850.16 km) |
| Eckernforde to Stamboliyski | 1,083.22 mi (1,743.28 km) |
| Eckernforde to Stara Zagora | 1,098.16 mi (1,767.32 km) |
| Eckernforde to Svilengrad | 1,152.06 mi (1,854.06 km) |
| Eckernforde to Svishtov | 1,023.33 mi (1,646.89 km) |
| Eckernforde to Targovishte | 1,081.34 mi (1,740.25 km) |
| Eckernforde to Teteven | 1,030.64 mi (1,658.65 km) |
| Eckernforde to Troyan | 1,045.45 mi (1,682.50 km) |
| Eckernforde to Tryavna | 1,069.37 mi (1,720.99 km) |
| Eckernforde to Tutrakan | 1,039.62 mi (1,673.11 km) |
| Eckernforde to Varna | 1,125.54 mi (1,811.39 km) |
