Cheapest return flights from Montreal to Chicago in December from 238€

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

Return flights

06 Dec - 06 Dec United
04 Dec - 07 Dec Porter Airlines (Canada) Ltd
11 Dec - 15 Dec Porter Airlines (Canada) Ltd
04 Dec - 08 Dec Porter Airlines (Canada) Ltd
10 Dec - 15 Dec Porter Airlines (Canada) Ltd
04 Dec - 08 Dec Air Canada direct
02 Dec - 09 Dec Air Canada direct
03 Dec - 10 Dec Air Canada direct
04 Dec - 11 Dec Air Canada direct
06 Dec - 13 Dec Air Canada direct
19 Dec - 10 Jan Air Canada direct
15 Dec - 15 Jan Porter Airlines (Canada) Ltd
27 Dec - 03 Jan United direct
26 Dec - 04 Jan United direct
31 Dec - 11 Jan Porter Airlines (Canada) Ltd
31 Dec - 07 Jan Porter Airlines (Canada) Ltd
26 Dec - 02 Jan United
31 Dec - 11 Jan Air Canada direct
31 Dec - 03 Jan WestJet
31 Dec - 07 Jan Air Canada direct

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

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