AirHint found the following cheapest one-way flights from Toronto (YTZ) to Singapore (SIN) in June 2025 (see full year).

One-Way flights

25 Jun	Porter Airlines (Canada) Ltd
19 Jun	Porter Airlines (Canada) Ltd
10 Jun	Porter Airlines (Canada) Ltd
24 Jun	Porter Airlines (Canada) Ltd
26 Jun	Porter Airlines (Canada) Ltd
20 Jun	Porter Airlines (Canada) Ltd
28 Jun	Porter Airlines (Canada) Ltd
27 Jun	Porter Airlines (Canada) Ltd
03 Jun	Porter Airlines (Canada) Ltd
06 Jun	SWISS

Also check the deals for return flights from Toronto to Singapore in June.

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 one-way flights from Toronto to Singapore in June from $702

One-Way flights