Cheapest return flights from Washington to Zurich in December from $598

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

Return flights

02 Dec - 04 Dec Aer Lingus
31 Dec - 31 Jan Turkish Airlines
10 Dec - 13 Dec Air Canada
01 Dec - 04 Dec Scandinavian Airlines
09 Dec - 13 Dec Scandinavian Airlines
04 Dec - 07 Dec TAP
31 Dec - 07 Jan Icelandair
31 Dec - 31 Jan SWISS direct
15 Dec - 30 Dec Icelandair
14 Dec - 21 Dec Aer Lingus
28 Dec - 04 Jan Austrian Airlines
24 Dec - 31 Dec TAP
21 Dec - 31 Dec Frontier Airlines
14 Dec - 21 Dec SWISS direct
31 Dec - 07 Jan SWISS direct
15 Dec - 04 Jan Icelandair
27 Dec - 03 Jan Air Canada
22 Dec - 03 Jan Frontier Airlines
23 Dec - 03 Jan SWISS
20 Dec - 03 Jan Frontier Airlines

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

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