Cheapest return flights from Seattle to Bangkok in June from $1099

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 June 2025 (see full year).

Return flights

10 Jun - 17 Jun Alaska Airlines
11 Jun - 25 Jun Alaska Airlines
11 Jun - 30 Jun Korean Air
01 Jun - 08 Jun WestJet
21 Jun - 23 Jun Singapore Airlines
04 Jun - 08 Jun WestJet
26 Jun - 10 Jul Asiana Airlines
16 Jun - 29 Jun Korean Air
11 Jun - 03 Jul Air Canada
11 Jun - 04 Jul Air Canada
26 Jun - 20 Jul Asiana Airlines
17 Jun - 29 Jun Korean Air
21 Jun - 05 Jul Singapore Airlines
21 Jun - 04 Jul Singapore Airlines
21 Jun - 22 Jun STARLUX Airlines

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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