AirHint found the following cheapest return flights from Porto (OPO) to Ljubljana (LJU) in August 2026 (see full year).
Return flights
| 20 Aug - 23 Aug | SWISS | ||
| 28 Aug - 30 Aug | SWISS | ||
| 01 Aug - 05 Aug | Lufthansa | ||
| 22 Aug - 02 Sep | SWISS |
Also check the deals for one-way flights from Porto to Ljubljana in August.
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