AirHint found the following cheapest return flights from Seattle (SEA) to Zurich (ZRH) in April 2026 (see full year).
Return flights
| 03 Apr - 25 Apr | Icelandair | ||
| 02 Apr - 25 Apr | Icelandair | ||
| 18 Apr - 25 Apr | Icelandair | ||
| 24 Apr - 16 May | Icelandair | ||
| 01 Apr - 11 Apr | Air Canada | ||
| 28 Apr - 05 May | Icelandair |
Also check the deals for one-way flights from Seattle to Zurich in April.
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