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

Return flights

13 Dec - 16 Dec	Wizz Air UK
06 Dec - 09 Dec	Wizz Air UK
06 Dec - 11 Dec	Wizz Air UK
12 Dec - 16 Dec	Wizz Air UK
04 Dec - 10 Dec	Wizz Air
13 Dec - 18 Dec	Wizz Air UK
07 Dec - 11 Dec	Wizz Air UK
07 Dec - 09 Dec	Wizz Air UK
06 Dec - 07 Dec	Wizz Air UK
12 Dec - 14 Dec	Wizz Air UK
25 Dec - 08 Jan	Wizz Air Malta
31 Dec - 04 Jan	Wizz Air Malta
18 Dec - 06 Jan	easyJet
31 Dec - 05 Jan	Wizz Air Malta
28 Dec - 25 Jan	Wizz Air Malta
17 Dec - 05 Jan	Wizz Air Malta
26 Dec - 09 Jan	Wizz Air Malta
27 Dec - 24 Jan	Wizz Air UK
30 Dec - 04 Jan	Wizz Air UK
30 Dec - 05 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 113€

Return flights