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

Return flights

02 Dec - 09 Dec	Vietnam Airlines
10 Dec - 17 Dec	Vietnam Airlines
03 Dec - 10 Dec	Vietnam Airlines
09 Dec - 13 Dec	Vietnam Airlines
15 Dec - 21 Dec	Vietnam Airlines
01 Dec - 10 Dec	Air China
08 Dec - 10 Dec	Air China
08 Dec - 11 Dec	VietJet Air
02 Dec - 05 Dec	VietJet Air
04 Dec - 07 Dec	Air China
19 Dec - 05 Jan	VietJet Air
30 Dec - 07 Jan	VietJet Air
30 Dec - 08 Jan	VietJet Air
28 Dec - 02 Jan	VietJet Air
26 Dec - 03 Jan	VietJet Air
29 Dec - 03 Jan	Air China
29 Dec - 02 Jan	Jeju Air
27 Dec - 03 Jan	Air China
27 Dec - 01 Jan	Air China
31 Dec - 03 Jan	Air China

Also check the deals for one-way flights from Busan to Singapore 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 Busan to Singapore in December from $239

Return flights