AirHint found the following cheapest one-way flights from Porto (OPO) to Sofia (SOF) in August 2026 (see full year).
One-Way flights
| 17 Aug | TAP | ||
| 23 Aug | Iberia | ||
| 06 Aug | Air Serbia | ||
| 09 Aug | Air Serbia | ||
| 16 Aug | Air Serbia | ||
| 08 Aug | Iberia | ||
| 07 Aug | Iberia | ||
| 06 Aug | Bulgaria Air | direct | |
| 09 Aug | Bulgaria Air | direct | |
| 23 Aug | Bulgaria Air | direct |
Also check the deals for return flights from Porto to Sofia in August.
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