AirHint found the following cheapest return flights from Ontario (ONT) to Singapore (SIN) in March 2026 (see full year).

Return flights

24 Mar - 03 Apr	Korean Air
31 Mar - 10 Apr	Korean Air
05 Mar - 09 Mar	Korean Air
02 Mar - 08 Apr	Korean Air
22 Mar - 29 Mar	Korean Air
27 Mar - 04 Apr	Korean Air
28 Mar - 15 Apr	Korean Air
27 Mar - 05 Apr	Korean Air
06 Mar - 15 Mar	China Airlines
26 Mar - 12 Apr	Korean Air
20 Mar - 27 Mar	China Airlines
11 Mar - 24 Mar	China Airlines
02 Mar - 16 Mar	China Airlines
01 Mar - 15 Mar	China Airlines
04 Mar - 18 Mar	China Airlines
02 Mar - 18 Mar	China Airlines
16 Mar - 21 Mar	China Airlines
29 Mar - 12 Apr	China Airlines
24 Mar - 04 Apr	China Airlines

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

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 March from $711

Return flights