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

Return flights

01 Dec - 13 Dec	United
09 Dec - 16 Dec	United
09 Dec - 12 Jan	Air France
26 Dec - 16 Jan	KLM
14 Dec - 18 Jan	Air Canada
24 Dec - 30 Dec	Air Canada
14 Dec - 17 Jan	Air Canada
14 Dec - 16 Jan	Air Canada
27 Dec - 11 Jan	Cathay Pacific
11 Dec - 02 Jan	Air Canada
20 Dec - 28 Dec	Air France
19 Dec - 04 Jan	Air India
19 Dec - 03 Jan	Air India
30 Dec - 30 Jan	United

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 $1151

Return flights