Cheapest return flights from Seoul to Bangkok in September from $151

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

Return flights

01 Sep - 06 Sep Vietnam Airlines
07 Sep - 12 Sep T'way Air direct
08 Sep - 11 Sep T'way Air direct
08 Sep - 10 Sep T'way Air direct
01 Sep - 04 Sep T'way Air direct
06 Sep - 09 Sep T'way Air direct
01 Sep - 11 Sep T'way Air direct
06 Sep - 10 Sep T'way Air direct
07 Sep - 11 Sep T'way Air direct
01 Sep - 10 Sep T'way Air direct
25 Sep - 21 Oct Vietnam Airlines
30 Sep - 03 Oct Vietnam Airlines
27 Sep - 05 Oct Vietnam Airlines
15 Sep - 01 Oct Vietnam Airlines
28 Sep - 05 Oct Vietnam Airlines
28 Sep - 04 Oct Vietnam Airlines
27 Sep - 04 Oct Vietnam Airlines
25 Sep - 01 Oct Vietnam Airlines
25 Sep - 05 Oct Vietnam Airlines
30 Sep - 02 Oct Vietnam Airlines

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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