Cheapest return flights from Bangkok to Seattle in April from $782

AirHint found the following cheapest return flights from Bangkok (BKK) to Seattle (SEA) in April 2026 (see full year).

Return flights

08 Apr - 19 Apr STARLUX Airlines
13 Apr - 20 Apr STARLUX Airlines
09 Apr - 19 Apr STARLUX Airlines
06 Apr - 20 Apr China Airlines
09 Apr - 18 Apr EVA Air
08 Apr - 18 Apr EVA Air
04 Apr - 17 Apr EVA Air
10 Apr - 18 Apr Delta
30 Apr - 10 May Delta
30 Apr - 23 May Delta
11 Apr - 15 Apr Delta

Also check the deals for one-way flights from Bangkok to Seattle in April.

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