AirHint found the following cheapest one-way flights from Ontario (ONT) to Riyadh (RUH) in December 2025 (see full year).
One-Way flights
| 05 Dec | Qatar Airways | ||
| 20 Dec | Frontier Airlines | ||
| 13 Dec | Qatar Airways | ||
| 23 Dec | British Airways | ||
| 12 Dec | British Airways |
Also check the deals for return flights from Ontario to Riyadh in December.
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