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

Return flights

01 Dec - 29 Dec	Cebu Pacific
17 Dec - 16 Jan	Scoot Tigerair	direct
13 Dec - 20 Dec	Cebu Pacific
18 Dec - 21 Dec	Royal Brunei
04 Dec - 09 Dec	Royal Brunei
05 Dec - 09 Dec	Royal Brunei
19 Dec - 30 Dec	Royal Brunei
26 Dec - 30 Dec	Royal Brunei
26 Dec - 31 Dec	Royal Brunei
22 Dec - 27 Dec	Royal Brunei
19 Dec - 27 Dec	Royal Brunei
26 Dec - 01 Jan	Royal Brunei
21 Dec - 05 Jan	Royal Brunei
25 Dec - 01 Jan	Royal Brunei
24 Dec - 04 Jan	Thai Airways
30 Dec - 04 Jan	VietJet Air
30 Dec - 03 Jan	VietJet Air
27 Dec - 01 Jan	Thai Airways
28 Dec - 01 Jan	Thai Airways
25 Dec - 01 Jan	Scoot Tigerair	direct

Also check the deals for one-way flights from Hong Kong 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 Hong Kong to Singapore in December from 200€

Return flights