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

Return flights

13 Dec - 14 Dec	Wizz Air UK
07 Dec - 14 Dec	easyJet
05 Dec - 07 Dec	Wizz Air
11 Dec - 14 Dec	easyJet
06 Dec - 10 Dec	Wizz Air UK
12 Dec - 14 Dec	Wizz Air Malta
06 Dec - 08 Dec	Wizz Air UK
03 Dec - 07 Dec	Wizz Air UK
06 Dec - 09 Dec	Wizz Air UK
13 Dec - 16 Dec	Wizz Air UK
30 Dec - 04 Jan	easyJet
23 Dec - 07 Jan	easyJet
24 Dec - 01 Jan	Wizz Air
19 Dec - 04 Jan	Wizz Air UK
26 Dec - 06 Jan	easyJet
27 Dec - 02 Jan	Wizz Air UK
26 Dec - 02 Jan	Wizz Air
20 Dec - 04 Jan	Wizz Air UK
19 Dec - 05 Jan	Wizz Air UK
27 Dec - 03 Jan	Wizz Air UK

Also check the deals for one-way flights from London to Ljubljana 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 London to Ljubljana in December from $177

Return flights