Cheapest return flights from Washington to Zurich in December from 528€

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

Return flights

09 Dec - 16 Dec Aer Lingus
08 Dec - 21 Dec Turkish Airlines
28 Dec - 17 Jan Royal Air Maroc
01 Dec - 27 Dec Turkish Airlines
04 Dec - 27 Dec Turkish Airlines
05 Dec - 20 Dec Turkish Airlines
23 Dec - 17 Jan Frontier Airlines
06 Dec - 27 Dec TAP
28 Dec - 17 Jan SWISS direct
21 Dec - 10 Jan Aer Lingus
09 Dec - 16 Dec SWISS direct
05 Dec - 18 Dec United
05 Dec - 17 Dec United
08 Dec - 21 Dec SWISS direct
27 Dec - 04 Jan Lufthansa
23 Dec - 17 Jan SWISS direct
08 Dec - 03 Jan Scandinavian Airlines
10 Dec - 03 Jan Frontier Airlines
12 Dec - 03 Jan Frontier Airlines
25 Dec - 03 Jan Frontier Airlines

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

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