| Cities | Distance |
|---|---|
| Erfelek to Smolyan | 526.88 mi (847.93 km) |
| Erfelek to Sofia | 594.41 mi (956.61 km) |
| Erfelek to Sopot | 522.20 mi (840.40 km) |
| Erfelek to Sozopol | 371.39 mi (597.70 km) |
| Erfelek to Sredets | 396.67 mi (638.38 km) |
| Erfelek to Stamboliyski | 533.03 mi (857.83 km) |
| Erfelek to Stara Zagora | 475.91 mi (765.90 km) |
| Erfelek to Svilengrad | 448.68 mi (722.08 km) |
| Erfelek to Svishtov | 499.62 mi (804.07 km) |
| Erfelek to Targovishte | 434.24 mi (698.85 km) |
| Erfelek to Teteven | 547.68 mi (881.41 km) |
| Erfelek to Troyan | 524.80 mi (844.58 km) |
| Erfelek to Tryavna | 485.17 mi (780.80 km) |
| Erfelek to Tutrakan | 445.30 mi (716.64 km) |
| Erfelek to Varna | 367.89 mi (592.07 km) |