Cheapest return flights from Seattle to Zurich in December from 428€

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

Return flights

07 Dec - 14 Dec Air Canada
15 Dec - 10 Jan Air France
06 Dec - 13 Dec Icelandair
01 Dec - 19 Dec Delta
09 Dec - 02 Jan Air Canada
18 Dec - 28 Dec United
19 Dec - 28 Dec Lufthansa
20 Dec - 28 Dec Icelandair
14 Dec - 03 Jan United
12 Dec - 03 Jan Lufthansa
17 Dec - 03 Jan Delta

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Zurich

Cheap car rent in Zurich

Feel free to contact us with any feedback or request another flight research.