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

Return flights

23 Jun - 25 Jun	Jeju Air
23 Jun - 28 Jun	Jeju Air
24 Jun - 28 Jun	Jeju Air
10 Jun - 15 Jun	Jeju Air
09 Jun - 18 Jun	Jeju Air
24 Jun - 29 Jun	Jeju Air
30 Jun - 03 Jul	Jeju Air
10 Jun - 25 Jun	Jeju Air
10 Jun - 14 Jun	Jeju Air
16 Jun - 19 Jun	Jeju Air
12 Jun - 19 Jun	Korean Air
26 Jun - 06 Jul	Jeju Air
26 Jun - 05 Jul	Jeju Air
16 Jun - 22 Jul	Jeju Air
27 Jun - 02 Jul	Jeju Air
24 Jun - 08 Jul	EVA Air
26 Jun - 01 Jul	EVA Air
22 Jun - 04 Jul	Air China
28 Jun - 02 Jul	Air China
28 Jun - 01 Jul	Air China

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

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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Cheapest return flights from Seoul to Bangkok in June from $285

Return flights