AirHint found the following cheapest return flights from Seattle (SEA) to Vienna (VIE) in December 2025 (see full year).
Return flights
| 10 Dec - 14 Dec | Icelandair | ||
| 23 Dec - 29 Dec | Condor | ||
| 23 Dec - 30 Dec | Condor | ||
| 22 Dec - 30 Dec | Condor | ||
| 29 Dec - 04 Jan | Condor | ||
| 21 Dec - 28 Dec | Hawaiian Airlines |
Also check the deals for one-way flights from Seattle to Vienna in December.
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