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

Return flights

19 Mar - 23 Mar	Air China
12 Mar - 16 Mar	Air China
14 Mar - 17 Mar	Air China
06 Mar - 10 Mar	Air China
13 Mar - 21 Mar	Air China
05 Mar - 11 Mar	Air China
12 Mar - 18 Mar	Air China
14 Mar - 20 Mar	Air China
15 Mar - 18 Mar	Air China
11 Mar - 16 Mar	Air China
26 Mar - 01 Apr	Air China
29 Mar - 01 Apr	Air China
28 Mar - 07 Apr	Air China
27 Mar - 20 Apr	Air China
31 Mar - 04 Apr	Korean Air
03 Mar - 01 Apr	Air China
29 Mar - 02 Apr	Air China
23 Mar - 06 Apr	Air China
16 Mar - 15 Apr	Air China
03 Mar - 22 Apr	Air China

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

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 March from 264€

Return flights