Cheapest return flights from Ontario (ONT) to Singapore (SIN), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
17 Sep 30 Sep Korean Air
06 Sep 20 Sep Korean Air
02 Sep 16 Sep Korean Air
01 Sep 19 Sep Korean Air
05 Sep 15 Sep Korean Air
20 Sep 29 Sep Korean Air
13 Sep 28 Sep Korean Air
15 Sep 23 Sep Korean Air
08 Sep 25 Sep Korean Air
03 Sep 14 Sep Korean Air
16 Sep 05 Oct Korean Air
30 Sep 12 Oct Korean Air
24 Sep 01 Oct Korean Air
28 Sep 04 Oct Korean Air
17 Sep 02 Oct Korean Air
24 Sep 11 Oct Korean Air
30 Sep 14 Oct Korean Air
15 Sep 05 Oct Korean Air
01 Sep 01 Oct Korean Air
23 Sep 07 Oct Korean Air
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deals for one-way flights from Ontario to Singapore in September.

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Updated Aug 25, 2026.

About these fares

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