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

Return flights

29 Jul - 05 Aug	SWISS
22 Jul - 28 Jul	Air Serbia
30 Jul - 06 Aug	SWISS
29 Jul - 07 Aug	SWISS
30 Jul - 05 Aug	SWISS
24 Jul - 28 Jul	SWISS
24 Jul - 30 Jul	SWISS
23 Jul - 30 Jul	SWISS
16 Jul - 23 Jul	Air France
03 Jul - 07 Jul	Eurowings
20 Jul - 29 Jul	SWISS
10 Jul - 21 Jul	Vueling Airlines
20 Jul - 30 Jul	SWISS
28 Jul - 05 Aug	Lufthansa
22 Jul - 29 Jul	Lufthansa
23 Jul - 02 Aug	SWISS
14 Jul - 04 Aug	Air Serbia
26 Jul - 05 Aug	SWISS
28 Jul - 04 Aug	Air Serbia
27 Jul - 01 Aug	SWISS

Also check the deals for one-way flights from Barcelona to Ljubljana in July.

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 Barcelona to Ljubljana in July from 178€

Return flights