Cheapest one-way flights from Ontario to Asuncion in December from $884

AirHint found the following cheapest one-way flights from Ontario (ONT) to Asuncion (ASU) in December 2025 (see full year).

One-Way flights

29 Dec Copa
21 Dec Copa

Also check the deals for return flights from Ontario to Asuncion in December.

Skyscanner

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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