I am heading to Toronto in early October, and my passport is set to expire in March 2024. I am finding conflicting information online regarding entry rules into Canada - some stating that my passport can not be expiring within the next three months, some stating six months, and others seeming to state my passport simply has to be not expired. Can someone help clarify for me or point me in the direction of a definitive answer? Thanks!

https://travel.state.gov/content/travel/en/international-travel/International-Travel-Country-Information-Pages/Canada.html

Per the U.S. State Department, it has to be valid at the time you enter Canada. You should have no issue.

I am not sure how I missed that, but I definitely did. Thank you for your help.

FYI Airlines can still deny you. I don't see it often, there are some airline agents that state you must have XYZ amount of time before it expires. Not saying this will happen, but just be prepared to ask to speak to somebody else at the airport if this occurs and be ready to show the policy.