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

Return flights

04 Dec - 10 Dec	Porter Airlines (Canada) Ltd
01 Dec - 06 Dec	Air Canada
05 Dec - 26 Dec	Lufthansa
07 Dec - 08 Jan	Korean Air
23 Dec - 14 Jan	Lufthansa
08 Dec - 05 Jan	Air Canada
24 Dec - 25 Jan	Cathay Pacific
18 Dec - 30 Dec	Etihad Airways
20 Dec - 27 Dec	KLM
21 Dec - 31 Dec	KLM
19 Dec - 30 Dec	Air France
19 Dec - 17 Jan	Air France
25 Dec - 05 Jan	KLM
18 Dec - 31 Dec	Lufthansa
13 Dec - 05 Jan	Air France
18 Dec - 06 Jan	Cathay Pacific
15 Dec - 05 Jan	Air France
27 Dec - 02 Jan	Air Canada
19 Dec - 31 Dec	Air Canada
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 980€

Return flights