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

Return flights

01 Apr - 09 Apr	Singapore Airlines
06 Apr - 13 Apr	Singapore Airlines
29 Apr - 05 May	Singapore Airlines
10 Apr - 15 Apr	China Airlines
26 Apr - 02 May	China Airlines
28 Apr - 03 May	China Airlines
11 Apr - 15 Apr	China Airlines
18 Apr - 26 Apr	China Airlines
01 Apr - 04 Apr	China Airlines
03 Apr - 06 Apr	China Airlines
04 Apr - 10 Apr	Singapore Airlines
30 Apr - 05 May	Singapore Airlines

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

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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Cheapest return flights from Busan to Bangkok in April from $368

Return flights