AirHint found the following cheapest return flights from Ontario (ONT) to Singapore (SIN) in October 2026 (see full year).
Return flights
| 30 Oct - 10 Nov | Korean Air | ||
| 03 Oct - 17 Oct | Korean Air | ||
| 22 Oct - 30 Oct | China Airlines | ||
| 05 Oct - 18 Oct | China Airlines | ||
| 20 Oct - 20 Nov | China Airlines | ||
| 26 Oct - 17 Nov | Qatar Airways |
Also check the deals for one-way flights from Ontario to Singapore in October.
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