Cheapest one-way flights from Seattle to Bangkok in October from $370

AirHint found the following cheapest one-way flights from Seattle (SEA) to Bangkok (BKK) in October 2025 (see full year).

One-Way flights

20 Oct Asiana Airlines
29 Oct Asiana Airlines
01 Oct STARLUX Airlines
02 Oct STARLUX Airlines
05 Oct STARLUX Airlines
06 Oct STARLUX Airlines
03 Oct STARLUX Airlines
17 Oct Asiana Airlines
14 Oct Korean Air
26 Oct STARLUX Airlines

Also check the deals for return flights from Seattle to Bangkok in October.

Skyscanner

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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