Cheapest return flights from Seoul to Bangkok in September from 118€

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

Return flights

19 Sep - 21 Sep Vietnam Airlines
16 Sep - 19 Sep Vietnam Airlines
15 Sep - 19 Sep Vietnam Airlines
16 Sep - 22 Sep Vietnam Airlines
12 Sep - 16 Sep Vietnam Airlines
11 Sep - 13 Sep Vietnam Airlines
17 Sep - 20 Sep Vietnam Airlines
12 Sep - 13 Sep Vietnam Airlines
20 Sep - 27 Sep Vietnam Airlines
01 Sep - 05 Sep Vietnam Airlines
26 Sep - 02 Oct Vietnam Airlines
01 Sep - 02 Oct T'way Air direct
14 Sep - 02 Oct Thai AirAsia X direct
24 Sep - 02 Oct Thai AirAsia X direct
22 Sep - 02 Oct Thai AirAsia X direct
17 Sep - 02 Oct Thai AirAsia X direct
21 Sep - 02 Oct Thai AirAsia X direct
12 Sep - 02 Oct Thai AirAsia X direct
19 Sep - 02 Oct Thai AirAsia X direct
26 Sep - 02 Oct Thai AirAsia X direct

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

Skyscanner

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.