Cheapest return AMS–LJU flights, September

AirHint found the following cheapest return flights from Amsterdam (AMS) to Ljubljana (LJU) in September 2026 (see full year).

Return flights

03 Sep - 09 Sep Air Serbia
03 Sep - 07 Sep Air Serbia
04 Sep - 07 Sep Air Serbia
05 Sep - 12 Sep Air Serbia
11 Sep - 25 Sep Air Serbia
04 Sep - 06 Sep Air Serbia
04 Sep - 08 Sep Air Serbia
07 Sep - 11 Sep Air Serbia
01 Sep - 18 Sep KLM direct
25 Sep - 27 Sep Air Serbia
30 Sep - 04 Oct KLM direct
17 Sep - 04 Oct Vueling Airlines

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

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