Cheapest one-way flights from Montreal to Chicago in September from 110€

AirHint found the following cheapest one-way flights from Montreal (YUL) to Chicago (ORD) in September 2025 (see full year).

One-Way flights

17 Sep Air Canada direct
23 Sep Air Canada direct
04 Sep Air Canada direct
09 Sep Air Canada direct
18 Sep Air Canada direct
26 Sep Delta
02 Sep United direct
28 Sep Porter Airlines (Canada) Ltd
26 Sep Air Canada direct
28 Sep United direct

Also check the deals for return flights from Montreal to Chicago in September.

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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