Cheapest return flights from Copenhagen to Ljubljana in September from $130

Best time to book flights for Copenhagen (CPH) to Ljubljana (LJU) flights at AirHint

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

Return flights

01 Sep - 12 Sep Norwegian Air Sweden AOC direct
01 Sep - 05 Sep Norwegian Air Sweden AOC direct
08 Sep - 12 Sep Norwegian Air Sweden AOC direct
22 Sep - 26 Sep Norwegian Air Sweden AOC direct
15 Sep - 26 Sep Norwegian Air Sweden AOC direct
01 Sep - 19 Sep Norwegian Air Sweden AOC direct
01 Sep - 15 Sep Norwegian Air Sweden AOC direct
06 Sep - 12 Sep KLM
22 Sep - 10 Oct Norwegian Air Sweden AOC direct
22 Sep - 06 Oct Norwegian Air Sweden AOC direct
01 Sep - 14 Sep Norwegian Air Sweden AOC
15 Sep - 19 Sep Norwegian Air Sweden AOC
29 Sep - 13 Oct Norwegian Air Sweden AOC direct
29 Sep - 10 Oct Norwegian Air Sweden AOC direct
29 Sep - 06 Oct Norwegian Air Sweden AOC direct
29 Sep - 17 Oct Norwegian Air Sweden AOC direct

Also check the deals for one-way flights from Copenhagen to Ljubljana 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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