AirHint found the following cheapest return flights from Seattle (SEA) to Zurich (ZRH) in April 2026 (see full year).
Return flights
| 29 Apr - 06 May | Condor | ||
| 27 Apr - 04 May | Icelandair | ||
| 30 Apr - 08 May | Condor | ||
| 07 Apr - 14 Apr | Icelandair | ||
| 12 Apr - 19 Apr | Icelandair |
Also check the deals for one-way flights from Seattle to Zurich in April.
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