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

Return flights

04 Apr - 11 Apr	Air Canada	direct
07 Apr - 14 Apr	United	direct
09 Apr - 16 Apr	United	direct
11 Apr - 18 Apr	Air Canada	direct
15 Apr - 22 Apr	United	direct
21 Apr - 28 Apr	Air Canada	direct
08 Apr - 15 Apr	United	direct
14 Apr - 21 Apr	Air Canada	direct
18 Apr - 25 Apr	Air Canada	direct
22 Apr - 29 Apr	United	direct
25 Apr - 02 May	Air Canada	direct
28 Apr - 05 May	Air Canada	direct
24 Apr - 01 May	United	direct
30 Apr - 07 May	United	direct
27 Apr - 04 May	WestJet
26 Apr - 03 May	Air Canada	direct

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

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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Cheapest return flights from Montreal to Chicago in April from 271€

Return flights