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

Return flights

12 Dec - 22 Dec	Aegean Airlines
10 Dec - 17 Dec	Air France
14 Dec - 22 Dec	Air Serbia
13 Dec - 22 Dec	Air Serbia
15 Dec - 24 Dec	Air Serbia
12 Dec - 16 Dec	Aegean Airlines
12 Dec - 23 Dec	Aegean Airlines
15 Dec - 22 Dec	Air Serbia
12 Dec - 15 Dec	Aegean Airlines
13 Dec - 17 Dec	KLM
16 Dec - 06 Jan	Vueling Airlines
31 Dec - 04 Jan	easyJet
29 Dec - 01 Jan	KLM
27 Dec - 01 Jan	easyJet
25 Dec - 06 Jan	Wizz Air
25 Dec - 01 Jan	Wizz Air
30 Dec - 04 Jan	easyJet
31 Dec - 03 Jan	easyJet
29 Dec - 05 Jan	Air Serbia
26 Dec - 04 Jan	Air Serbia

Also check the deals for one-way flights from Ljubljana to Lisbon 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 Lisbon in December from 217€

Return flights