AirHint found the following cheapest return flights from Porto (OPO) to Helsinki (HEL) in December 2026 (see full year).
Return flights
| 17 Dec - 27 Jan | Ryanair | ||
| 15 Dec - 17 Jan | Iberia | ||
| 24 Dec - 01 Jan | Ryanair | ||
| 23 Dec - 01 Jan | Vueling Airlines | ||
| 24 Dec - 31 Dec | Luxair | ||
| 23 Dec - 31 Dec | Lufthansa | ||
| 25 Dec - 30 Dec | Scandinavian Airlines |
Also check the deals for one-way flights from Porto to Helsinki in December.
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