AirHint found the following cheapest return flights from Seattle (SEA) to Zurich (ZRH) in June 2026 (see full year).

Return flights

01 Jun - 08 Jun	Icelandair
07 Jun - 10 Jun	Condor
11 Jun - 18 Jun	Icelandair
01 Jun - 15 Jun	British Airways
16 Jun - 23 Jun	Icelandair
21 Jun - 28 Jun	Icelandair
23 Jun - 08 Jul	Icelandair
15 Jun - 19 Jun	Icelandair
26 Jun - 03 Jul	Icelandair
06 Jun - 13 Jun	Icelandair

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

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 June from 631€

Return flights