Cheapest return flights from Seoul to Bangkok in September from $284

AirHint found the following cheapest return flights from Seoul (GMP) to Bangkok (BKK) in September 2026 (see full year).

Return flights

01 Sep - 07 Sep Jeju Air
02 Sep - 04 Sep Jeju Air
02 Sep - 10 Sep Jeju Air
01 Sep - 04 Sep Jeju Air
15 Sep - 20 Sep Jeju Air
16 Sep - 20 Sep Jeju Air
09 Sep - 13 Sep Jeju Air
01 Sep - 06 Sep Jeju Air
04 Sep - 10 Sep Jeju Air
11 Sep - 18 Sep Jeju Air
15 Sep - 06 Oct EVA Air
25 Sep - 06 Oct EVA Air
15 Sep - 04 Oct Jeju Air
13 Sep - 11 Oct Air China
26 Sep - 05 Oct EVA Air
23 Sep - 09 Oct EVA Air
25 Sep - 02 Oct EVA Air
29 Sep - 31 Oct Air China
25 Sep - 05 Oct EVA Air
26 Sep - 04 Oct Air China

Also check the deals for one-way flights from Seoul to Bangkok in September.

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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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