Cheapest return flights from Seoul to Bangkok in May from $174

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

Return flights

19 May - 03 Jun Vietnam Airlines
27 May - 30 May Vietnam Airlines
16 May - 24 May Vietnam Airlines
14 May - 17 May Vietnam Airlines
23 May - 27 May Vietnam Airlines
04 May - 09 May Vietnam Airlines
13 May - 17 May Vietnam Airlines
23 May - 25 May Vietnam Airlines
15 May - 22 May Vietnam Airlines
17 May - 23 May Vietnam Airlines
08 May - 15 May Vietnam Airlines
31 May - 08 Jun Vietnam Airlines
30 May - 02 Jun Vietnam Airlines
29 May - 01 Jun Vietnam Airlines
29 May - 02 Jun Vietnam Airlines
30 May - 06 Jun Vietnam Airlines
30 May - 07 Jun Vietnam Airlines
17 May - 02 Jun Thai AirAsia X direct
16 May - 02 Jun Thai AirAsia X direct
14 May - 02 Jun Thai AirAsia X direct

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