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

Return flights

09 Apr - 16 Apr	Avianca
12 Apr - 19 Apr	WestJet
13 Apr - 20 Apr	WestJet
15 Apr - 22 Apr	Avianca
16 Apr - 23 Apr	Avianca
17 Apr - 24 Apr	Avianca
21 Apr - 28 Apr	Avianca
25 Apr - 02 May	Avianca
30 Apr - 07 May	Avianca
01 Apr - 08 Apr	Avianca
01 Apr - 08 Apr	Air Canada	direct
02 Apr - 09 Apr	Air Canada	direct
24 Apr - 01 May	United	direct
25 Apr - 02 May	Air Canada	direct
28 Apr - 05 May	Air Canada	direct
29 Apr - 06 May	Air Canada	direct
30 Apr - 07 May	United	direct
27 Apr - 04 May	United
27 Apr - 04 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 $313

Return flights