Cheapest one-way flights from Ljubljana to Sofia in September from $92

AirHint found the following cheapest one-way flights from Ljubljana (LJU) to Sofia (SOF) in September 2025 (see full year).

One-Way flights

08 Sep Air Serbia
22 Sep Air Serbia
26 Sep Air Serbia
04 Sep Air Serbia

Also check the deals for return flights from Ljubljana to Sofia in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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