Cheapest return flights from Seattle to Bangkok in April from $683

Best time to book flights for Seattle (SEA) to Bangkok (BKK) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Bangkok (BKK) in April 2025 (see full year).

Return flights

30 Apr - 07 May Philippine Airlines
22 Apr - 22 May Asiana Airlines
23 Apr - 13 May Asiana Airlines
22 Apr - 23 May Asiana Airlines
20 Apr - 04 May Asiana Airlines
23 Apr - 04 May Asiana Airlines
07 Apr - 29 Apr China Airlines
28 Apr - 13 May China Airlines
15 Apr - 26 May Korean Air
15 Apr - 04 May Korean Air
20 Apr - 10 May Korean Air
21 Apr - 28 Apr China Airlines
22 Apr - 29 Apr China Airlines
16 Apr - 28 Apr China Airlines
14 Apr - 24 Apr China Airlines
15 Apr - 24 Apr China Airlines
07 Apr - 10 Apr China Airlines
08 Apr - 15 Apr China Airlines
08 Apr - 22 Apr STARLUX Airlines
21 Apr - 30 Apr STARLUX Airlines

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