Cheapest one-way flights from Ontario to Singapore in May from $460

Best time to book flights for Ontario (ONT) to Singapore (SIN) flights at AirHint

AirHint found the following cheapest one-way flights from Ontario (ONT) to Singapore (SIN) in May 2025 (see full year).

One-Way flights

22 May Korean Air
14 May Korean Air
11 May Frontier Airlines
07 May China Airlines
12 May China Airlines
29 May Frontier Airlines
09 May China Airlines
19 May Alaska Airlines
20 May Korean Air
15 May China Airlines

Also check the deals for return flights from Ontario to Singapore in May.

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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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