| Cities | Distance |
|---|---|
| Erfelek to Devnya | 385.15 mi (619.84 km) |
| Erfelek to Dimitrovgrad | 478.53 mi (770.12 km) |
| Erfelek to Dobrich | 377.74 mi (607.91 km) |
| Erfelek to Dospat | 553.86 mi (891.36 km) |
| Erfelek to Dupnitsa | 605.18 mi (973.94 km) |
| Erfelek to Elhovo | 428.85 mi (690.17 km) |
| Erfelek to Etropole | 560.81 mi (902.54 km) |
| Erfelek to Gabrovo | 493.58 mi (794.34 km) |
| Erfelek to Gorna Oryahovitsa | 477.06 mi (767.76 km) |
| Erfelek to Gotse Delchev | 576.71 mi (928.12 km) |
| Erfelek to Harmanli | 463.44 mi (745.83 km) |
| Erfelek to Haskovo | 480.55 mi (773.38 km) |
| Erfelek to Ihtiman | 569.40 mi (916.36 km) |
| Erfelek to Isperih | 428.72 mi (689.95 km) |
| Erfelek to Kardzhali | 492.16 mi (792.06 km) |