Cheapest return flights from Bangkok to Seoul in May from $221

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

Return flights

22 May - 27 May Thai Lion Air direct
19 May - 26 May Thai Lion Air direct
21 May - 27 May Thai Lion Air direct
18 May - 31 May Thai Lion Air direct
16 May - 24 May Thai Lion Air direct
20 May - 25 May Thai Lion Air direct
14 May - 18 May Thai AirAsia
14 May - 19 May Thai AirAsia
12 May - 19 May Thai AirAsia
19 May - 22 May Thai Lion Air direct
28 May - 02 Jun Thai Lion Air direct
28 May - 01 Jun Thai AirAsia
30 May - 13 Jun Thai AirAsia
31 May - 05 Jun Thai AirAsia
30 May - 06 Jun Thai AirAsia
30 May - 01 Jun Thai AirAsia
30 May - 05 Jun Thai AirAsia
27 May - 01 Jun Thai AirAsia
17 May - 06 Jun Thai AirAsia
29 May - 05 Jun Thai AirAsia

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

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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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