AirHint found the following cheapest return flights from Ontario (ONT) to Singapore (SIN) in November 2025 (see full year).

Return flights

23 Nov - 04 Dec	Korean Air
19 Nov - 18 Dec	Korean Air
19 Nov - 04 Dec	Korean Air
17 Nov - 04 Dec	Korean Air
18 Nov - 05 Dec	Korean Air
25 Nov - 08 Dec	Korean Air
24 Nov - 07 Dec	Korean Air
25 Nov - 05 Dec	Korean Air
27 Nov - 04 Dec	Korean Air
23 Nov - 08 Dec	Korean Air
10 Nov - 18 Nov	Korean Air
12 Nov - 24 Nov	Korean Air
09 Nov - 19 Nov	Korean Air
08 Nov - 18 Nov	Korean Air
17 Nov - 25 Nov	Korean Air
18 Nov - 25 Nov	Korean Air
12 Nov - 17 Nov	STARLUX Airlines
02 Nov - 09 Nov	Korean Air
01 Nov - 13 Nov	China Airlines
17 Nov - 28 Nov	STARLUX Airlines

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

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 November from $774

Return flights