Cheapest return flights from Ontario to Singapore in May from $764

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

Return flights

11 May - 22 Jun Korean Air
10 May - 17 May Korean Air
07 May - 17 May ANA
08 May - 16 May China Airlines
07 May - 23 May China Airlines
27 May - 02 Jun Korean Air
10 May - 23 May China Airlines
31 May - 11 Jun China Airlines
24 May - 07 Jun China Airlines
29 May - 05 Jun STARLUX Airlines
27 May - 14 Jun China Airlines

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

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