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

Return flights

30 Aug - 17 Sep	Air Canada
30 Aug - 19 Sep	Air Canada
23 Aug - 19 Sep	Air Canada
30 Aug - 26 Sep	Air Canada
30 Aug - 12 Sep	Air Canada
31 Aug - 07 Sep	Air Canada
31 Aug - 29 Sep	Air Canada
23 Aug - 26 Sep	Philippine Airlines
29 Aug - 19 Sep	Air Canada
25 Aug - 02 Sep	Air Canada
19 Aug - 26 Aug	United
24 Aug - 30 Aug	WestJet
21 Aug - 28 Aug	Air India
22 Aug - 29 Aug	WestJet

Also check the deals for one-way flights from Toronto to Singapore in August.

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 August from 761€

Return flights