Cheapest return flights from Seoul to Bangkok in September from 239€

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

Return flights

12 Sep - 17 Sep Jeju Air
09 Sep - 10 Sep Jeju Air
15 Sep - 16 Oct Jeju Air
01 Sep - 04 Sep Jeju Air
05 Sep - 07 Sep Jeju Air
09 Sep - 13 Sep Jeju Air
02 Sep - 06 Sep Jeju Air
01 Sep - 06 Sep Jeju Air
11 Sep - 14 Sep Jeju Air
04 Sep - 07 Sep Jeju Air
11 Sep - 13 Sep Jeju Air
28 Sep - 02 Oct Jeju Air
30 Sep - 05 Oct Air China
26 Sep - 03 Oct Jeju Air
24 Sep - 05 Oct Jeju Air
24 Sep - 04 Oct Jeju Air

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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