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
09 Sep - 14 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
22 Sep - 06 Oct EVA Air
15 Sep - 04 Oct Jeju Air
13 Sep - 11 Oct Air China
28 Sep - 12 Oct Air China
26 Sep - 05 Oct EVA Air
23 Sep - 09 Oct EVA Air
25 Sep - 02 Oct EVA Air
25 Sep - 05 Oct EVA Air

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

Powered by

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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Feel free to contact us with any feedback or request another flight research.