AirHint found the following cheapest return flights from Chicago (ORD) to Montreal (YUL) in January 2026 (see full year).
Return flights
| 15 Jan - 22 Jan | Air Canada | direct | |
| 24 Jan - 26 Jan | Air Canada | direct | |
| 04 Jan - 09 Jan | Delta | ||
| 01 Jan - 06 Jan | WestJet | ||
| 01 Jan - 06 Jan | Air Canada | direct | |
| 05 Jan - 13 Jan | United |
Also check the deals for one-way flights from Chicago to Montreal in January.
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