Cheapest one-way flights from Montreal to Chicago in December from 141€

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

One-Way flights

13 Dec Air Canada direct
10 Dec Air Canada direct
14 Dec Air Canada direct
12 Dec Air Canada direct
31 Dec Air Canada
19 Dec Air Canada
18 Dec Air Canada
18 Dec Porter Airlines (Canada) Ltd direct
29 Dec WestJet
23 Dec Delta

Also check the deals for return flights from Montreal to Chicago 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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