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

Return flights

02 Dec - 16 Dec	Air Canada
02 Dec - 18 Dec	Air Canada
03 Dec - 19 Dec	Air Canada
02 Dec - 27 Dec	Air Canada
09 Dec - 30 Dec	Air Canada
10 Dec - 30 Dec	Air Canada
09 Dec - 18 Dec	Air Canada
06 Dec - 13 Dec	Air Canada
03 Dec - 17 Dec	Air Canada
23 Dec - 11 Jan	Air Canada
10 Dec - 31 Dec	Air Canada
15 Dec - 05 Jan	Air France
10 Dec - 03 Jan	Air India
14 Dec - 03 Jan	Air India
19 Dec - 03 Jan	Air India
18 Dec - 03 Jan	Air India
18 Dec - 04 Jan	Air India
20 Dec - 02 Jan	Air Canada

Also check the deals for one-way flights from Toronto 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 Toronto to Singapore in December from $833

Return flights