AirHint found the following cheapest return flights from Chicago (MDW) to Quebec (YQB) in August 2025 (see full year).

Return flights

20 Aug - 02 Sep	Porter Airlines (Canada) Ltd
30 Aug - 02 Sep	Frontier Airlines
27 Aug - 30 Aug	Porter Airlines (Canada) Ltd
28 Aug - 02 Sep	WestJet
20 Aug - 07 Sep	Porter Airlines (Canada) Ltd
28 Aug - 31 Aug	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Chicago to Quebec in August.

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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Cheapest return flights from Chicago to Quebec in August from 401€

Return flights