Cheapest return GMP–BKK flights, September

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

Return flights

09 Sep - 16 Sep Air China
09 Sep - 11 Sep Air China
16 Sep - 19 Sep Air China
16 Sep - 21 Sep Air China
01 Sep - 03 Sep Air China
01 Sep - 10 Sep Air China
09 Sep - 10 Sep Air China
12 Sep - 18 Sep Air China
07 Sep - 10 Sep Air China
12 Sep - 17 Sep Air China
09 Sep - 21 Oct Air China
17 Sep - 04 Oct Air China
07 Sep - 23 Oct Air China
05 Sep - 04 Oct Air China
01 Sep - 23 Oct Air China
05 Sep - 23 Oct Air China
02 Sep - 28 Oct Air China
30 Sep - 04 Oct Air China
29 Sep - 13 Oct Air China
17 Sep - 05 Oct Air China

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

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