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

Return flights

01 Dec - 29 Jan	Air Canada
02 Dec - 29 Jan	Air Canada
03 Dec - 24 Dec	Air Canada
03 Dec - 09 Dec	Air Canada
02 Dec - 23 Dec	Japan Airlines
14 Dec - 20 Dec	TAP
05 Dec - 12 Dec	Korean Air
08 Dec - 31 Dec	Lufthansa
02 Dec - 01 Jan	Air Canada
29 Dec - 16 Jan	Lufthansa
14 Dec - 27 Jan	Air France
25 Dec - 14 Jan	EVA Air
14 Dec - 12 Jan	Air France
17 Dec - 31 Dec	Cathay Pacific
27 Dec - 07 Jan	EVA Air
27 Dec - 10 Jan	EVA Air
26 Dec - 09 Jan	Cathay Pacific
21 Dec - 31 Dec	EVA Air
05 Dec - 21 Dec	China Southern

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 $1052

Return flights