Cheapest one-way flights from Chicago to Toronto in December from $115

AirHint found the following cheapest one-way flights from Chicago (MDW) to Toronto (YTZ) in December 2025 (see full year).

One-Way flights

11 Dec Porter Airlines (Canada) Ltd direct
05 Dec Porter Airlines (Canada) Ltd direct
02 Dec Porter Airlines (Canada) Ltd direct
09 Dec Porter Airlines (Canada) Ltd direct
08 Dec Porter Airlines (Canada) Ltd direct
06 Dec Porter Airlines (Canada) Ltd direct
25 Dec Porter Airlines (Canada) Ltd direct
18 Dec Porter Airlines (Canada) Ltd direct
15 Dec Porter Airlines (Canada) Ltd direct
19 Dec Porter Airlines (Canada) Ltd direct

Also check the deals for return flights from Chicago to Toronto in December.

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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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