Cheapest return flights from Bangkok to Seoul in May from $180

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

Return flights

15 May - 17 May Thai AirAsia X direct
16 May - 17 May Thai AirAsia X direct
24 May - 01 Jun Thai AirAsia X direct
15 May - 01 Jun Thai AirAsia X direct
17 May - 01 Jun Thai AirAsia X direct
26 May - 01 Jun Thai AirAsia X direct
16 May - 01 Jun Thai AirAsia X direct
23 May - 01 Jun Thai AirAsia X direct
28 May - 01 Jun Thai AirAsia X direct
24 May - 29 May Thai AirAsia X direct
24 May - 25 May Thai AirAsia X direct
15 May - 20 May Thai AirAsia X direct
15 May - 19 May Thai AirAsia X direct
15 May - 29 May Thai AirAsia X direct
15 May - 21 May Thai AirAsia X direct
15 May - 18 May Thai AirAsia X direct
15 May - 25 May Thai AirAsia X direct
24 May - 11 Jun Thai AirAsia X direct
24 May - 12 Jun Thai AirAsia X direct
24 May - 13 Jun Thai AirAsia X direct

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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