AirHint found the following cheapest one-way flights from Ontario (ONT) to Buenos Aires (EZE) in March 2026 (see full year).
One-Way flights
| 12 Mar | Copa | ||
| 25 Mar | Copa | ||
| 04 Mar | Copa | ||
| 17 Mar | Copa | ||
| 11 Mar | Copa | ||
| 30 Mar | Copa | ||
| 10 Mar | Copa | ||
| 13 Mar | Copa | ||
| 14 Mar | Copa | ||
| 16 Mar | Copa |
Also check the deals for return flights from Ontario to Buenos Aires in March.
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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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