AirHint found the following cheapest return flights from London (LHR) to Ljubljana (LJU) in January 2026 (see full year).

Return flights

21 Jan - 25 Jan	Vueling Airlines
28 Jan - 05 Feb	Vueling Airlines
14 Jan - 18 Jan	Vueling Airlines
28 Jan - 02 Feb	Vueling Airlines
30 Jan - 02 Feb	Air Serbia
07 Jan - 11 Jan	Vueling Airlines
29 Jan - 01 Feb	Lufthansa
30 Jan - 01 Feb	Lufthansa
01 Jan - 10 Jan	Lufthansa
30 Jan - 06 Feb	Lufthansa
01 Jan - 09 Jan	Lufthansa
15 Jan - 23 Jan	Lufthansa
15 Jan - 18 Jan	Lufthansa
22 Jan - 25 Jan	Lufthansa
16 Jan - 18 Jan	Lufthansa
31 Jan - 01 Feb	SWISS
10 Jan - 17 Jan	SWISS
30 Jan - 03 Feb	Lufthansa

Also check the deals for one-way flights from London to Ljubljana in January.

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 January from 144€

Return flights