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

Return flights

21 Jan - 28 Jan	Air China
04 Jan - 11 Jan	Air China
03 Jan - 06 Jan	Air China
19 Jan - 28 Jan	Air China
21 Jan - 26 Jan	Air China
15 Jan - 19 Jan	Air China
06 Jan - 12 Jan	Air China
19 Jan - 24 Jan	Air China
19 Jan - 23 Jan	Air China
09 Jan - 20 Jan	Air China
09 Jan - 15 Feb	Air China
15 Jan - 15 Feb	Air China
21 Jan - 18 Feb	Air China
04 Jan - 10 Feb	Air China
05 Jan - 11 Feb	Air China
28 Jan - 02 Feb	Air China
28 Jan - 03 Feb	Air China
28 Jan - 05 Feb	Air China
28 Jan - 06 Feb	Air China
04 Jan - 18 Feb	Air China

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

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

Cheapest return flights from Seoul to Bangkok in January from $499

Return flights