Cheapest return flights from Montreal to Chicago in December from 149€

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

Return flights

05 Dec - 08 Dec Air Canada direct
02 Dec - 09 Dec Air Canada direct
04 Dec - 11 Dec Air Canada direct
06 Dec - 13 Dec Air Canada direct
08 Dec - 15 Dec Air Canada direct
10 Dec - 17 Dec Air Canada direct
03 Dec - 10 Dec Air Canada direct
05 Dec - 12 Dec Air Canada direct
07 Dec - 14 Dec Air Canada direct
09 Dec - 16 Dec Air Canada direct
25 Dec - 01 Jan Air Canada direct
27 Dec - 06 Jan Air Canada direct
30 Dec - 06 Jan Air Canada direct
31 Dec - 07 Jan Air Canada direct
29 Dec - 04 Jan Air Canada
26 Dec - 02 Jan United direct
27 Dec - 03 Jan Air Canada direct
28 Dec - 04 Jan Air Canada direct
29 Dec - 04 Jan Air Canada direct
29 Dec - 05 Jan United direct

Also check the deals for one-way 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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