AirHint found the following cheapest return flights from Sofia (SOF) to Porto (OPO) in August 2026 (see full year).
Return flights
| 13 Aug - 19 Aug | Air Serbia | ||
| 02 Aug - 06 Aug | Wizz Air | ||
| 03 Aug - 07 Aug | Wizz Air | ||
| 16 Aug - 20 Aug | Ryanair |
Also check the deals for one-way flights from Sofia to Porto in August.
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