AirHint found the following cheapest return flights from Ljubljana (LJU) to Warsaw (WAW) in December 2025 (see full year).

Return flights

15 Dec - 22 Dec	Aegean Airlines
05 Dec - 10 Dec	Lufthansa
04 Dec - 09 Dec	SWISS
08 Dec - 12 Dec	Lufthansa
03 Dec - 06 Dec	SWISS
04 Dec - 23 Dec	SWISS
05 Dec - 24 Dec	SWISS
01 Dec - 05 Dec	SWISS
10 Dec - 16 Dec	SWISS
20 Dec - 07 Jan	LOT	direct
19 Dec - 02 Jan	LOT	direct
17 Dec - 23 Dec	Lufthansa
31 Dec - 03 Jan	LOT	direct
20 Dec - 03 Jan	LOT	direct
19 Dec - 04 Jan	LOT	direct
29 Dec - 03 Jan	LOT	direct
30 Dec - 03 Jan	LOT	direct
29 Dec - 02 Jan	LOT	direct
28 Dec - 04 Jan	LOT	direct
28 Dec - 02 Jan	LOT	direct

Also check the deals for one-way flights from Ljubljana to Warsaw in December.

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 Ljubljana to Warsaw in December from $186

Return flights