Cheapest return flights from Seoul to Bangkok in May from $156

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

Return flights

15 May - 18 May Thai AirAsia X direct
15 May - 19 May Thai AirAsia X direct
13 May - 18 May Thai AirAsia X direct
14 May - 20 May Thai AirAsia X direct
30 May - 02 Jun Thai AirAsia X direct
21 May - 25 May Vietnam Airlines
19 May - 23 May T'way Air direct
18 May - 22 May T'way Air direct
19 May - 22 May T'way Air direct
18 May - 27 May T'way Air direct
11 May - 21 May T'way Air direct
26 May - 27 Jun T'way Air direct
25 May - 01 Jun Vietnam Airlines
30 May - 06 Jun Thai AirAsia X direct
29 May - 03 Jun Thai AirAsia X direct
28 May - 03 Jun Thai AirAsia X direct
31 May - 07 Jun Thai AirAsia X direct
30 May - 03 Jun Thai AirAsia X direct
30 May - 01 Jun Vietnam Airlines
27 May - 02 Jun Vietnam Airlines

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

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