Cheapest return flights from Seoul to Bangkok in September from 136€

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

Return flights

09 Sep - 20 Sep Vietnam Airlines
11 Sep - 14 Sep Thai AirAsia X direct
04 Sep - 09 Sep Thai AirAsia X direct
04 Sep - 11 Sep Thai AirAsia X direct
04 Sep - 13 Sep Thai AirAsia X direct
09 Sep - 20 Sep Thai AirAsia X direct
30 Sep - 04 Oct Thai AirAsia X direct
17 Sep - 28 Sep Vietnam Airlines
01 Sep - 11 Sep Vietnam Airlines
16 Sep - 23 Sep Vietnam Airlines
25 Sep - 28 Sep Vietnam Airlines
25 Sep - 02 Oct Vietnam Airlines
26 Sep - 03 Oct Vietnam Airlines
21 Sep - 26 Oct Thai AirAsia X direct
28 Sep - 05 Oct Thai AirAsia X direct
16 Sep - 23 Oct Thai AirAsia X direct
14 Sep - 16 Oct VietJet Air
27 Sep - 23 Oct VietJet Air
26 Sep - 23 Oct VietJet Air
29 Sep - 25 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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