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

Return flights

01 Dec - 05 Dec	Wizz Air UK
05 Dec - 09 Dec	Wizz Air UK
06 Dec - 09 Dec	Wizz Air UK
03 Dec - 08 Dec	Wizz Air UK
05 Dec - 10 Dec	Wizz Air UK
05 Dec - 08 Dec	Wizz Air UK
10 Dec - 13 Dec	Wizz Air UK
03 Dec - 07 Dec	Wizz Air UK
06 Dec - 07 Dec	Wizz Air UK
04 Dec - 08 Dec	Wizz Air UK
31 Dec - 07 Jan	Wizz Air UK
31 Dec - 05 Jan	easyJet
26 Dec - 01 Jan	Wizz Air UK
31 Dec - 01 Jan	Wizz Air UK
30 Dec - 03 Jan	easyJet
24 Dec - 02 Jan	easyJet
31 Dec - 04 Jan	easyJet
29 Dec - 02 Jan	easyJet
23 Dec - 02 Jan	Wizz Air

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 224€

Return flights