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	United
03 Dec - 10 Dec	United
04 Dec - 11 Dec	Air Canada
07 Dec - 14 Dec	Air Canada
09 Dec - 16 Dec	Air Canada
01 Dec - 08 Dec	United
08 Dec - 15 Dec	KLM
10 Dec - 11 Jan	Air Canada
31 Dec - 07 Jan	Air Canada
05 Dec - 12 Dec	Air France
06 Dec - 13 Dec	Air France
30 Dec - 06 Jan	Air France
10 Dec - 17 Dec	Air France
25 Dec - 09 Jan	Air France
25 Dec - 01 Jan	Air France
24 Dec - 09 Jan	Air France
29 Dec - 05 Jan	Air France
17 Dec - 11 Jan	Air France
28 Dec - 04 Jan	Air France
26 Dec - 02 Jan	KLM

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 $907

Return flights