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

Return flights

08 Oct - 12 Oct	Vueling Airlines
03 Oct - 11 Oct	Vueling Airlines
14 Oct - 21 Oct	Air Serbia
11 Oct - 15 Oct	British Airways	direct
01 Oct - 08 Oct	Vueling Airlines
04 Oct - 11 Oct	Air Serbia
04 Oct - 10 Oct	Air Serbia
01 Oct - 12 Oct	Vueling Airlines
18 Oct - 20 Oct	Air Serbia
04 Oct - 12 Oct	Air Serbia
31 Oct - 04 Nov	Lufthansa
31 Oct - 05 Nov	Lufthansa
21 Oct - 03 Nov	Brussels Airlines
29 Oct - 03 Nov	SWISS
27 Oct - 01 Nov	Lufthansa
29 Oct - 01 Nov	Brussels Airlines
26 Oct - 02 Nov	SWISS
31 Oct - 02 Nov	SWISS
29 Oct - 02 Nov	Brussels Airlines
30 Oct - 02 Nov	Lufthansa

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

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 October from 165€

Return flights