Cheapest return flights from Bangkok to Seoul in April from $281

Best time to book flights for Bangkok (BKK) to Seoul (ICN) flights at AirHint

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

Return flights

02 Apr - 06 Apr Vietnam Airlines
11 Apr - 18 Apr Cebu Pacific
02 Apr - 22 Apr Xiamen Airlines
03 Apr - 22 Apr Xiamen Airlines
04 Apr - 22 Apr Xiamen Airlines
19 Apr - 24 Apr Thai AirAsia X direct
19 Apr - 23 Apr Thai AirAsia X direct
19 Apr - 25 Apr Thai AirAsia X direct
16 Apr - 24 Apr Thai AirAsia X direct
16 Apr - 23 Apr Thai AirAsia X direct
25 Apr - 01 May Thai AirAsia X direct
28 Apr - 01 May Thai AirAsia X direct
19 Apr - 01 May Thai AirAsia X direct
29 Apr - 01 May Thai AirAsia X direct
16 Apr - 01 May Thai AirAsia X direct
20 Apr - 01 May Thai AirAsia X direct
26 Apr - 01 May Thai AirAsia X direct
15 Apr - 01 May Thai AirAsia X direct
13 Apr - 01 May Thai AirAsia X direct
11 Apr - 01 May Thai AirAsia X direct

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