Cheapest return flights from Seoul to Bangkok in September from $179

Best time to book flights for Seoul (ICN) to Bangkok (BKK) flights at AirHint

AirHint found the following cheapest return flights from Seoul (ICN) to Bangkok (BKK) in September 2025 (see full year).

Return flights

19 Sep - 29 Sep Vietnam Airlines
06 Sep - 14 Sep Vietnam Airlines
01 Sep - 30 Sep Vietnam Airlines
19 Sep - 22 Sep Vietnam Airlines
19 Sep - 27 Sep Vietnam Airlines
09 Sep - 14 Sep Vietnam Airlines
05 Sep - 09 Sep Vietnam Airlines
04 Sep - 08 Sep Vietnam Airlines
13 Sep - 20 Sep Vietnam Airlines
19 Sep - 23 Sep Vietnam Airlines
16 Sep - 15 Oct Vietnam Airlines
29 Sep - 03 Oct Vietnam Airlines
28 Sep - 03 Oct Vietnam Airlines
27 Sep - 03 Oct Vietnam Airlines
30 Sep - 13 Oct Vietnam Airlines
29 Sep - 13 Oct Vietnam Airlines
30 Sep - 10 Oct Vietnam Airlines
16 Sep - 15 Oct Asiana Airlines direct
29 Sep - 13 Oct Asiana Airlines direct
29 Sep - 03 Oct Asiana Airlines direct

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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