Cheapest return flights from Seoul to Bangkok in April from $166

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

AirHint found the following cheapest return flights from Seoul (ICN) to Bangkok (BKK) in April 2025 (see full year).

Return flights

21 Apr - 24 Apr Vietnam Airlines
28 Apr - 02 May Vietnam Airlines
23 Apr - 24 Apr Vietnam Airlines
25 Apr - 02 May Vietnam Airlines
21 Apr - 07 May Vietnam Airlines
23 Apr - 08 May Vietnam Airlines
22 Apr - 07 May Vietnam Airlines
23 Apr - 09 May Vietnam Airlines
22 Apr - 02 May Vietnam Airlines
28 Apr - 01 May Vietnam Airlines
24 Apr - 07 May Vietnam Airlines
21 Apr - 08 May Vietnam Airlines
26 Apr - 29 Apr Jeju Air direct
23 Apr - 25 Apr Jeju Air direct
23 Apr - 29 Apr Jeju Air direct
27 Apr - 29 Apr Jeju Air direct
22 Apr - 24 Apr Jeju Air direct
27 Apr - 30 Apr Jeju Air direct
22 Apr - 25 Apr Jeju Air direct
23 Apr - 24 Apr Jeju Air direct

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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