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

Return flights

14 Jul - 16 Aug	Scandinavian Airlines
25 Jul - 30 Jul	Icelandair
14 Jul - 16 Aug	SWISS	direct
26 Jul - 05 Aug	Icelandair
26 Jul - 04 Aug	Icelandair
23 Jul - 30 Jul	Icelandair
25 Jul - 01 Aug	Icelandair
29 Jul - 05 Aug	Icelandair
17 Jul - 24 Jul	Icelandair
09 Jul - 16 Jul	Icelandair
15 Jul - 22 Jul	United
28 Jul - 04 Aug	Scandinavian Airlines
28 Jul - 04 Aug	SWISS	direct
26 Jul - 04 Aug	SWISS	direct
12 Jul - 26 Jul	Aer Lingus
26 Jul - 02 Aug	SWISS	direct
19 Jul - 26 Jul	United
14 Jul - 20 Jul	Icelandair
11 Jul - 18 Jul	United
12 Jul - 26 Jul	SWISS	direct

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

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.

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Cheapest return flights from Seattle to Zurich in July from $566

Return flights