Cheapest return flights from Seattle to Bangkok in June from $810

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

Return flights

19 Jun - 02 Jul Singapore Airlines
20 Jun - 27 Jun Singapore Airlines
14 Jun - 07 Jul Singapore Airlines
18 Jun - 14 Jul WestJet
22 Jun - 01 Jul Alaska Airlines
16 Jun - 07 Jul Cathay Pacific
22 Jun - 04 Jul Alaska Airlines
27 Jun - 04 Jul Delta

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

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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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