AirHint found the following cheapest return flights from Chiang Mai (CNX) to Seattle (SEA) in April 2026 (see full year).
Return flights
| 07 Apr - 26 May | EVA Air | ||
| 02 Apr - 26 May | EVA Air | ||
| 02 Apr - 25 May | EVA Air | ||
| 09 Apr - 21 May | Thai VietJet Air | ||
| 07 Apr - 21 May | HK Express |
Also check the deals for one-way flights from Chiang Mai to Seattle in April.
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