Cheapest return flights from Chicago to Toronto in September from 119€

AirHint found the following cheapest return flights from Chicago (ORD) to Toronto (YYZ) in September 2025 (see full year).

Return flights

08 Sep - 15 Sep Air Canada direct
28 Sep - 01 Oct Air Canada direct
09 Sep - 12 Sep United direct
08 Sep - 11 Sep United direct
03 Sep - 07 Sep United direct
18 Sep - 19 Sep Air Canada direct
04 Sep - 11 Sep Air Canada direct
10 Sep - 15 Sep Air Canada direct
05 Sep - 11 Sep Air Canada direct
20 Sep - 22 Sep United direct
05 Sep - 08 Sep Air Canada direct
24 Sep - 01 Oct Air Canada direct
24 Sep - 05 Oct Air Canada direct
01 Sep - 01 Oct United direct

Also check the deals for one-way flights from Chicago to Toronto in September.

Skyscanner

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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