Cheapest one-way flights from Bangkok to Seattle in April from $426

AirHint found the following cheapest one-way flights from Bangkok (DMK) to Seattle (SEA) in April 2026 (see full year).

One-Way flights

20 Apr Thai Lion Air
21 Apr Thai Lion Air
28 Apr Thai Lion Air
22 Apr Thai Lion Air
27 Apr Thai Lion Air
19 Apr Thai Lion Air
23 Apr Thai AirAsia
16 Apr Thai Lion Air
18 Apr Thai AirAsia
17 Apr Thai AirAsia

Also check the deals for return flights from Bangkok to Seattle in April.

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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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