Cheapest return flights from Seoul to Bangkok in September from 114€

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

Return flights

09 Sep - 12 Sep Vietnam Airlines
05 Sep - 08 Sep Vietnam Airlines
18 Sep - 24 Sep Vietnam Airlines
18 Sep - 25 Sep Vietnam Airlines
19 Sep - 26 Sep Vietnam Airlines
15 Sep - 22 Sep Vietnam Airlines
12 Sep - 16 Sep Vietnam Airlines
13 Sep - 20 Sep Vietnam Airlines
22 Sep - 30 Sep Vietnam Airlines
08 Sep - 17 Sep Vietnam Airlines
22 Sep - 03 Oct Vietnam Airlines
22 Sep - 02 Oct Air Premia direct
21 Sep - 02 Oct T'way Air direct
01 Sep - 01 Oct T'way Air direct
26 Sep - 05 Oct Thai AirAsia X direct
25 Sep - 01 Oct Air Premia direct
28 Sep - 02 Oct Air Premia direct
26 Sep - 03 Oct Thai AirAsia X direct
23 Sep - 03 Oct Jin Air direct
15 Sep - 03 Oct Jin Air 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.