AirHint found the following cheapest return flights from Porto (OPO) to Vienna (VIE) in December 2026 (see full year).
Return flights
| 12 Dec - 15 Dec | KLM | ||
| 09 Dec - 12 Dec | SWISS | ||
| 30 Dec - 02 Jan | TAP | ||
| 03 Dec - 07 Dec | Lufthansa | ||
| 05 Dec - 06 Dec | Ryanair | ||
| 05 Dec - 08 Dec | SWISS | ||
| 04 Dec - 08 Dec | Lufthansa | ||
| 25 Dec - 30 Dec | Iberia |
Also check the deals for one-way flights from Porto to Vienna in December.
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