Cheapest return flights from Ontario to Buenos Aires in May from $915

AirHint found the following cheapest return flights from Ontario (ONT) to Buenos Aires (EZE) in May 2026 (see full year).

Return flights

11 May - 15 May Volaris
12 May - 15 May Volaris
10 May - 10 Jun LATAM Airlines Group
29 May - 12 Jun LATAM Airlines Group

Also check the deals for one-way flights from Ontario to Buenos Aires in May.

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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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