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

One-Way flights

10 Jun	Cathay Pacific
11 Jun	Cathay Pacific
12 Jun	Cathay Pacific
19 Jun	Cathay Pacific
24 Jun	Porter Airlines (Canada) Ltd
23 Jun	Air Transat
29 Jun	WestJet
30 Jun	Porter Airlines (Canada) Ltd
25 Jun	Porter Airlines (Canada) Ltd
26 Jun	WestJet

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 $628

One-Way flights