Cheapest return flights from Seoul to Bangkok in May from $253

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

Return flights

05 May - 10 May Korean Air
13 May - 20 May Korean Air
28 May - 31 May Korean Air
12 May - 14 May Jeju Air
28 May - 04 Jun Korean Air
13 May - 18 May Jeju Air
28 May - 02 Jun Jeju Air
23 May - 27 May Korean Air
13 May - 17 May Jeju Air
27 May - 31 May Jeju Air
13 May - 21 May Jeju Air
12 May - 17 May Jeju Air
23 May - 01 Jun Jeju Air
23 May - 14 Jun Jeju Air
23 May - 19 Jun Jeju Air
29 May - 09 Jun EVA Air
22 May - 02 Jun EVA Air
23 May - 03 Jun EVA Air
30 May - 02 Jun EVA Air
23 May - 02 Jun EVA Air

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

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