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

Return flights

08 Apr - 12 Apr	Vietnam Airlines
04 Apr - 10 Apr	Vietnam Airlines
06 Apr - 11 Apr	Vietnam Airlines
05 Apr - 11 Apr	Vietnam Airlines
06 Apr - 10 Apr	Vietnam Airlines
10 Apr - 17 Apr	Vietnam Airlines
04 Apr - 08 Apr	Vietnam Airlines
06 Apr - 08 Apr	Vietnam Airlines
05 Apr - 10 Apr	Vietnam Airlines
01 Apr - 07 Apr	Vietnam Airlines
26 Apr - 01 May	Singapore Airlines	direct

Also check the deals for one-way flights from Singapore to Busan 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 Singapore to Busan in April from $298

Return flights