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

Return flights

31 Oct - 04 Nov	Air Serbia
28 Oct - 31 Oct	Air Serbia
29 Oct - 04 Nov	Air Serbia
28 Oct - 30 Oct	Air Serbia
31 Oct - 03 Nov	Air Serbia
29 Oct - 31 Oct	Air Serbia
28 Oct - 01 Nov	Air Serbia
29 Oct - 03 Nov	Air Serbia
31 Oct - 01 Nov	Air Serbia
29 Oct - 01 Nov	Air Serbia
27 Oct - 03 Nov	Aegean Airlines
30 Oct - 03 Nov	Lufthansa
28 Oct - 02 Nov	Air Serbia
27 Oct - 30 Oct	Aegean Airlines
31 Oct - 31 Oct	SWISS
25 Oct - 31 Oct	LOT
24 Oct - 30 Oct	Lufthansa
25 Oct - 30 Oct	Lufthansa
24 Oct - 28 Oct	Lufthansa
24 Oct - 27 Oct	Lufthansa

Also check the deals for one-way flights from Ljubljana to Barcelona 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 Ljubljana to Barcelona in October from 183€

Return flights