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

Return flights

22 Oct - 24 Oct	Air Serbia
15 Oct - 20 Oct	Air Serbia
15 Oct - 26 Oct	Air Serbia
15 Oct - 21 Oct	easyJet
09 Oct - 15 Oct	Air Serbia
06 Oct - 10 Oct	Air Serbia
15 Oct - 22 Oct	easyJet
17 Oct - 24 Oct	Air Serbia
14 Oct - 21 Oct	easyJet
24 Oct - 28 Oct	Air Serbia
30 Oct - 02 Nov	Air Serbia
31 Oct - 03 Nov	Air Serbia
30 Oct - 01 Nov	Air Serbia
31 Oct - 01 Nov	Air Serbia
29 Oct - 03 Nov	Air Serbia
27 Oct - 01 Nov	Air Serbia
29 Oct - 01 Nov	Air Serbia

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 140€

Return flights