Distance Between Slovenia and Bulgaria

Straight-line (air) distance between geographic centers: ~1,100 km (684 miles).

Road distance (Ljubljana → Sofia via Zagreb, Belgrade, Niš): ~1,350 km (840 miles), ~13–14 hours driving.

Flight: No direct Ljubljana (LJU) → Sofia (SOF); connect via Vienna, Munich, Istanbul, or Belgrade (4–6 hrs total).

Both are EU/NATO members; Schengen (Slovenia) / EU (Bulgaria, joining Schengen air/sea 2024).