Cheapest return flights from Copenhagen to Ljubljana in September from $141

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

22 Sep - 10 Oct Norwegian Air Sweden AOC direct
22 Sep - 26 Sep Norwegian Air Sweden AOC direct
08 Sep - 26 Sep Norwegian Air Sweden AOC direct
26 Sep - 10 Oct Norwegian Air Sweden AOC direct
01 Sep - 05 Sep Norwegian Air Sweden AOC direct
19 Sep - 26 Sep Norwegian Air Sweden AOC direct
22 Sep - 03 Oct Norwegian Air Sweden AOC direct
12 Sep - 15 Sep Lufthansa
15 Sep - 26 Sep Norwegian Air Sweden AOC direct
08 Sep - 19 Sep Norwegian Air Sweden AOC direct
08 Sep - 15 Sep Norwegian Air Sweden AOC direct
12 Sep - 26 Sep Norwegian Air Sweden AOC direct
26 Sep - 13 Oct Norwegian Air Sweden AOC direct
29 Sep - 10 Oct Norwegian Air Sweden AOC direct
10 Sep - 14 Sep Lufthansa
19 Sep - 03 Oct Norwegian Air Sweden AOC direct
26 Sep - 03 Oct Norwegian Air Sweden AOC direct
29 Sep - 13 Oct Norwegian Air Sweden AOC direct
15 Sep - 03 Oct Norwegian Air Sweden AOC direct
29 Sep - 03 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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