Cheapest one-way flights from Barcelona to Ljubljana in September from $100

Best time to book flights for Barcelona (BCN) to Ljubljana (LJU) flights at AirHint

AirHint found the following cheapest one-way flights from Barcelona (BCN) to Ljubljana (LJU) in September 2025 (see full year).

One-Way flights

05 Sep Air Serbia

Also check the deals for return flights from Barcelona to Ljubljana in September.

Skyscanner

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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