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

Return flights

15 Jan - 18 Jan	Lufthansa
16 Jan - 19 Jan	SWISS
17 Jan - 20 Jan	SWISS
05 Jan - 12 Jan	Brussels Airlines
02 Jan - 07 Jan	Brussels Airlines
05 Jan - 09 Jan	Brussels Airlines
23 Jan - 25 Jan	SWISS
16 Jan - 18 Jan	Brussels Airlines
30 Jan - 01 Feb	Brussels Airlines
04 Jan - 11 Jan	Brussels Airlines
30 Jan - 02 Feb	SWISS
02 Jan - 04 Jan	Brussels Airlines

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 185€

Return flights