AirHint found the following cheapest return flights from Singapore (SIN) to Busan (PUS) in December 2025 (see full year).

Return flights

26 Dec - 30 Dec	Jeju Air
28 Dec - 30 Dec	Jeju Air
29 Dec - 30 Dec	Jeju Air
28 Dec - 01 Jan	Jeju Air
29 Dec - 01 Jan	Jeju Air
26 Dec - 28 Dec	Jeju Air
24 Dec - 30 Dec	China Eastern
25 Dec - 30 Dec	Malaysia Airlines
30 Dec - 06 Jan	VietJet Air
24 Dec - 27 Dec	China Eastern
24 Dec - 28 Dec	China Eastern
29 Dec - 31 Dec	Jeju Air
31 Dec - 05 Jan	VietJet Air
30 Dec - 02 Jan	VietJet Air
28 Dec - 31 Dec	Jeju Air
28 Dec - 02 Jan	Jeju Air
29 Dec - 02 Jan	Jeju Air
28 Dec - 04 Jan	VietJet Air
30 Dec - 01 Jan	VietJet Air
26 Dec - 01 Jan	VietJet Air

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

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 December from $283

Return flights