Cheapest return flights from Seattle to Bangkok in January from 547€

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

Return flights

30 Jan - 12 Feb Singapore Airlines
25 Jan - 09 Feb Singapore Airlines
15 Jan - 21 Jan United
22 Jan - 31 Jan Asiana Airlines
15 Jan - 20 Jan ANA
15 Jan - 27 Jan ANA
22 Jan - 29 Jan Asiana Airlines
18 Jan - 25 Jan ANA
19 Jan - 26 Jan ANA
05 Jan - 15 Jan ANA
20 Jan - 17 Feb ANA
29 Jan - 17 Feb ANA
25 Jan - 26 Feb Asiana Airlines
18 Jan - 06 Feb Asiana Airlines
21 Jan - 08 Feb Korean Air
20 Jan - 24 Feb Korean Air
15 Jan - 24 Jan Asiana Airlines
12 Jan - 19 Jan Korean Air
20 Jan - 19 Feb China Airlines
20 Jan - 22 Feb Asiana Airlines

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

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