Cheapest return flights from Montreal to Chicago in August from $227

AirHint found the following cheapest return flights from Montreal (YUL) to Chicago (ORD) in August 2025 (see full year).

Return flights

29 Aug - 02 Sep Air Canada direct
30 Aug - 03 Sep Air Canada direct
30 Aug - 02 Sep Air Canada direct
26 Aug - 02 Sep Air Canada direct
27 Aug - 03 Sep Air Canada direct
28 Aug - 04 Sep Air Canada direct
29 Aug - 05 Sep Air Canada direct
30 Aug - 06 Sep Air Canada direct
31 Aug - 07 Sep Air Canada direct
15 Aug - 19 Aug Air Canada direct
28 Aug - 31 Aug Air Canada direct
15 Aug - 17 Aug Air Canada direct
22 Aug - 30 Aug Air Canada direct
05 Aug - 12 Aug Air Canada direct
06 Aug - 13 Aug Air Canada direct
07 Aug - 14 Aug Air Canada direct
08 Aug - 15 Aug Air Canada direct
09 Aug - 16 Aug Air Canada direct
11 Aug - 18 Aug Air Canada direct
29 Aug - 01 Sep Delta

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

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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