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

Return flights

05 Dec - 12 Dec	Jetstar
10 Dec - 17 Dec	Jetstar
04 Dec - 11 Dec	Qantas
05 Dec - 12 Dec	Singapore Airlines	direct
29 Dec - 04 Jan	Singapore Airlines	direct
09 Dec - 16 Dec	Jetstar
28 Dec - 05 Jan	Singapore Airlines	direct
19 Dec - 26 Dec	Jetstar
10 Dec - 17 Dec	Singapore Airlines	direct
17 Dec - 04 Jan	Singapore Airlines	direct
27 Dec - 02 Jan	Cathay Pacific
14 Dec - 21 Dec	Qantas
28 Dec - 04 Jan	Singapore Airlines	direct
14 Dec - 05 Jan	Qantas
20 Dec - 10 Jan	Jetstar
27 Dec - 04 Jan	Qantas
27 Dec - 03 Jan	Qantas
19 Dec - 26 Dec	Singapore Airlines	direct
16 Dec - 15 Jan	Jetstar
14 Dec - 21 Dec	Singapore Airlines	direct

Also check the deals for one-way flights from Cairns 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 Cairns to Singapore in December from $530

Return flights