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

Return flights

10 Jan - 17 Jan	United
08 Jan - 13 Jan	United
18 Jan - 05 Feb	Japan Airlines
26 Jan - 07 Feb	Korean Air
28 Jan - 07 Feb	Korean Air
26 Jan - 01 Feb	Korean Air
26 Jan - 02 Feb	Korean Air
28 Jan - 04 Feb	Korean Air
26 Jan - 08 Feb	Korean Air
26 Jan - 11 Feb	Korean Air
29 Jan - 16 Feb	Korean Air
26 Jan - 10 Feb	Korean Air
21 Jan - 27 Jan	China Airlines
14 Jan - 28 Jan	China Airlines
18 Jan - 24 Jan	China Airlines
12 Jan - 31 Jan	China Airlines
22 Jan - 31 Jan	China Airlines
17 Jan - 22 Jan	China Airlines
24 Jan - 30 Jan	China Airlines
11 Jan - 19 Jan	China Airlines

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

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 January from $783

Return flights