Cheapest return flights from Seattle to Zurich in December from 424€

AirHint found the following cheapest return flights from Seattle (SEA) to Zurich (ZRH) in December 2025 (see full year).

Return flights

28 Dec - 17 Jan Air France
27 Dec - 17 Jan Condor
24 Dec - 17 Jan Condor
11 Dec - 17 Dec United
26 Dec - 17 Jan KLM
17 Dec - 24 Dec Delta
04 Dec - 27 Dec Condor
17 Dec - 10 Jan Alaska Airlines
17 Dec - 31 Dec Delta
18 Dec - 10 Jan Hawaiian Airlines
11 Dec - 03 Jan WestJet
14 Dec - 03 Jan Hawaiian Airlines
18 Dec - 31 Dec Alaska Airlines
13 Dec - 20 Dec Alaska Airlines
25 Dec - 01 Jan Icelandair
27 Dec - 03 Jan Icelandair

Also check the deals for one-way flights from Seattle to Zurich in December.

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