Cheapest one-way flights from Chicago to Montreal in March from $123

AirHint found the following cheapest one-way flights from Chicago (ORD) to Montreal (YUL) in March 2026 (see full year).

One-Way flights

18 Mar Frontier Airlines
29 Mar United direct
29 Mar Delta
18 Mar Air Canada direct
31 Mar Air Canada direct
31 Mar Delta
21 Mar WestJet
13 Mar American Airlines
21 Mar American Airlines direct
13 Mar American Airlines direct

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

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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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