Cheapest return flights from Chicago to Montreal in May from 157€

AirHint found the following cheapest return flights from Chicago (ORD) to Montreal (YUL) in May 2026 (see full year).

Return flights

24 May - 27 May Air Canada direct
13 May - 17 May Air Canada direct
15 May - 17 May Air Canada direct
14 May - 17 May Air Canada direct
22 May - 25 May Air Canada direct
29 May - 01 Jun Air Canada direct
21 May - 24 May WestJet
21 May - 25 May WestJet
21 May - 24 May United direct

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

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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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