Cheapest return flights from Seoul to Bangkok in April from $155

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

Return flights

21 Apr - 28 Apr Vietnam Airlines
21 Apr - 24 Apr Thai AirAsia X direct
26 Apr - 07 May T'way Air direct
26 Apr - 15 May T'way Air direct
26 Apr - 08 May T'way Air direct
20 Apr - 25 Apr Vietnam Airlines
03 Apr - 20 Apr Vietnam Airlines
21 Apr - 26 Apr Vietnam Airlines
21 Apr - 27 Apr Vietnam Airlines
03 Apr - 20 Apr Thai AirAsia X direct
21 Apr - 29 Apr Thai AirAsia X direct
21 Apr - 27 Apr Thai AirAsia X direct
22 Apr - 23 Apr Vietnam Airlines
22 Apr - 01 May Vietnam Airlines
24 Apr - 01 May Vietnam Airlines
28 Apr - 01 May Vietnam Airlines
25 Apr - 11 May Vietnam Airlines
02 Apr - 07 May Vietnam Airlines
25 Apr - 06 May Vietnam Airlines
01 Apr - 12 May Vietnam Airlines

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

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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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