AirHint found the following cheapest return flights from Ontario (ONT) to Singapore (SIN) in July 2025 (see full year).

Return flights

28 Jul - 04 Aug	Korean Air
30 Jul - 12 Aug	Korean Air
21 Jul - 11 Aug	Korean Air
22 Jul - 07 Aug	Korean Air
23 Jul - 07 Aug	Korean Air
21 Jul - 08 Aug	Korean Air
24 Jul - 03 Aug	Korean Air
23 Jul - 01 Aug	Korean Air
21 Jul - 01 Aug	Korean Air
27 Jul - 01 Aug	Korean Air
27 Jul - 30 Jul	Korean Air
23 Jul - 29 Jul	Korean Air
17 Jul - 21 Jul	Korean Air
15 Jul - 21 Jul	Korean Air
24 Jul - 29 Jul	Korean Air
11 Jul - 18 Jul	Korean Air
09 Jul - 16 Jul	Korean Air
06 Jul - 11 Jul	China Airlines
12 Jul - 21 Jul	China Airlines
08 Jul - 14 Jul	China Airlines

Also check the deals for one-way flights from Ontario to Singapore in July.

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 Ontario to Singapore in July from $713

Return flights