Cheapest return flights from Ljubljana to Bucharest in September from $201

AirHint found the following cheapest return flights from Ljubljana (LJU) to Bucharest (OTP) in September 2025 (see full year).

Return flights

25 Sep - 01 Oct SWISS
06 Sep - 13 Sep Air Serbia
09 Sep - 11 Sep Transavia France
05 Sep - 11 Sep Air Serbia
05 Sep - 08 Sep Air Serbia
29 Sep - 02 Oct Air Serbia
07 Sep - 13 Sep Air Serbia
04 Sep - 04 Sep Air Serbia

Also check the deals for one-way flights from Ljubljana to Bucharest in September.

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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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