Cheapest return flights from Seattle to Bangkok in February from $512

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

Return flights

01 Feb - 12 Feb Singapore Airlines
05 Feb - 12 Feb Singapore Airlines
03 Feb - 11 Feb Singapore Airlines
07 Feb - 14 Feb Singapore Airlines
12 Feb - 18 Feb Singapore Airlines
20 Feb - 04 Mar Singapore Airlines
10 Feb - 17 Mar Asiana Airlines
15 Feb - 27 Feb Singapore Airlines
25 Feb - 04 Mar Asiana Airlines
15 Feb - 01 Mar Asiana Airlines
15 Feb - 03 Mar Asiana Airlines
10 Feb - 15 Feb Asiana Airlines
16 Feb - 07 Mar Asiana Airlines
13 Feb - 27 Feb Singapore Airlines
19 Feb - 24 Feb Singapore Airlines
11 Feb - 17 Feb China Airlines

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

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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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