Cheapest return flights from Seattle to Bangkok in April from $696

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

24 Apr - 09 May Asiana Airlines
08 Apr - 28 Apr Singapore Airlines
01 Apr - 01 May Asiana Airlines
08 Apr - 29 Apr Asiana Airlines
06 Apr - 24 Apr Asiana Airlines
22 Apr - 23 May China Eastern
08 Apr - 15 Apr Korean Air
15 Apr - 22 Apr Korean Air
06 Apr - 15 Apr Korean Air
06 Apr - 21 Apr Korean Air
29 Apr - 06 May ANA
01 Apr - 21 Apr Singapore Airlines
06 Apr - 13 Apr Singapore Airlines
01 Apr - 22 Apr China 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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