Cheapest return flights from Ontario to Singapore in April from $675

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

Return flights

12 Apr - 25 Apr Korean Air
17 Apr - 25 Apr Korean Air
24 Apr - 02 May Korean Air
25 Apr - 02 May Korean Air
24 Apr - 01 May Korean Air
19 Apr - 25 Apr Korean Air
12 Apr - 20 Apr Korean Air
24 Apr - 04 May Singapore Airlines
26 Apr - 03 May China Airlines
09 Apr - 16 Apr China Airlines
15 Apr - 20 Apr China Airlines

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

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