Cheapest return flights from Seoul to Bangkok in May from $159

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

Return flights

31 May - 09 Jun Vietnam Airlines
29 May - 07 Jun Thai AirAsia X direct
29 May - 06 Jun Thai AirAsia X direct
29 May - 08 Jun Thai AirAsia X direct
29 May - 15 Jun Thai AirAsia X direct
29 May - 18 Jun Thai AirAsia X direct
29 May - 16 Jun Thai AirAsia X direct
13 May - 17 May Thai AirAsia X direct
29 May - 09 Jun Thai AirAsia X direct
14 May - 19 May Thai AirAsia X direct
14 May - 20 May Thai AirAsia X direct
14 May - 18 May Thai AirAsia X direct
14 May - 24 May Thai AirAsia X direct
14 May - 29 May Thai AirAsia X direct
14 May - 17 May Thai AirAsia X direct
27 May - 29 May Thai AirAsia X direct
24 May - 29 May Thai AirAsia X direct
13 May - 19 May Thai AirAsia X direct
27 May - 07 Jun Thai AirAsia X direct
27 May - 06 Jun Thai AirAsia X direct

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

Skyscanner

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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