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

Return flights

02 Dec - 09 Dec	Air Canada
04 Dec - 11 Dec	Air Canada
07 Dec - 14 Dec	Air Canada
09 Dec - 16 Dec	Air Canada
10 Dec - 18 Dec	Air Canada
01 Dec - 15 Dec	United
03 Dec - 10 Dec	United
31 Dec - 07 Jan	Air Canada
01 Dec - 08 Dec	United
08 Dec - 15 Dec	KLM
05 Dec - 12 Dec	Air France
15 Dec - 15 Jan	Air France
30 Dec - 06 Jan	Air France
25 Dec - 01 Jan	Air France
29 Dec - 05 Jan	Air France
22 Dec - 08 Jan	SWISS
27 Dec - 03 Jan	Air France
26 Dec - 02 Jan	KLM
28 Dec - 04 Jan	Air France
19 Dec - 04 Jan	Emirates

Also check the deals for one-way flights from Montreal 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 Montreal to Singapore in December from 804€

Return flights