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

Return flights

26 Sep - 28 Sep	Vietnam Airlines
14 Sep - 18 Sep	Vietnam Airlines
14 Sep - 19 Sep	Vietnam Airlines
20 Sep - 24 Sep	Vietnam Airlines
19 Sep - 20 Sep	Vietnam Airlines
14 Sep - 18 Sep	Jeju Air	direct
14 Sep - 19 Sep	Jeju Air	direct
11 Sep - 14 Sep	Jeju Air	direct
21 Sep - 24 Sep	Vietnam Airlines
22 Sep - 11 Oct	Vietnam Airlines
22 Sep - 11 Oct	Singapore Airlines	direct
22 Sep - 27 Sep	China Airlines

Also check the deals for one-way flights from Busan to Singapore in September.

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 Singapore in September from $226

Return flights