AirHint found the following cheapest return flights from Porto (OPO) to Sofia (SOF) in January 2026 (see full year).
Return flights
| 09 Jan - 16 Jan | Vueling Airlines | ||
| 16 Jan - 18 Jan | Vueling Airlines | ||
| 17 Jan - 25 Jan | Transavia France | ||
| 09 Jan - 24 Jan | Vueling Airlines | ||
| 27 Jan - 28 Jan | Ryanair |
Also check the deals for one-way flights from Porto to Sofia in January.
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