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

Return flights

28 Sep - 02 Oct	transavia	direct
26 Sep - 02 Oct	transavia	direct
30 Sep - 03 Oct	transavia	direct
26 Sep - 30 Sep	transavia	direct
25 Sep - 30 Sep	transavia	direct
29 Sep - 02 Oct	easyJet
29 Sep - 03 Oct	easyJet
11 Sep - 19 Sep	transavia
16 Sep - 22 Sep	transavia
07 Sep - 18 Sep	transavia	direct
11 Sep - 14 Sep	transavia
09 Sep - 19 Sep	transavia
11 Sep - 21 Sep	transavia
05 Sep - 18 Sep	transavia	direct
16 Sep - 19 Sep	transavia
25 Sep - 06 Oct	transavia
25 Sep - 05 Oct	transavia
24 Sep - 06 Oct	SWISS
26 Sep - 03 Oct	Air Serbia
30 Sep - 07 Oct	Air Serbia

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

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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Cheapest return flights from Amsterdam to Ljubljana in September from $156

Return flights