Cheapest one-way flights from Seoul to Bangkok in April from $170

AirHint found the following cheapest one-way flights from Seoul (GMP) to Bangkok (BKK) in April 2026 (see full year).

One-Way flights

08 Apr Korean Air
22 Apr Korean Air
01 Apr Korean Air
02 Apr Korean Air
10 Apr Korean Air
03 Apr Korean Air
11 Apr Korean Air
23 Apr Korean Air
28 Apr Korean Air
06 Apr Korean Air

Also check the deals for return 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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