AirHint found the following cheapest one-way flights from Ontario (ONT) to Buenos Aires (EZE) in April 2026 (see full year).
One-Way flights
| 21 Apr | Avianca | ||
| 01 Apr | LATAM Airlines Group | ||
| 22 Apr | Copa | ||
| 23 Apr | Copa | ||
| 25 Apr | Copa | ||
| 27 Apr | Copa | ||
| 29 Apr | Copa | ||
| 03 Apr | Copa | ||
| 17 Apr | Copa | ||
| 20 Apr | Copa |
Also check the deals for return flights from Ontario to Buenos Aires in April.
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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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