I'm travelling to or from the United States — can I skip the transit visa?

Canada runs a Transit Without Visa (TWOV) program for certain travellers connecting to and from the United States. If you qualify, you can pass through a participating Canadian airport without a Canadian transit visa.

The conditions are specific: you generally need a confirmed onward ticket to the U.S. departing Canada within a set window, you must fly with an airline that participates in the program, and you must hold the right U.S. travel documents. Because eligibility is narrow and tied to the airline and airport, confirm with your carrier before relying on TWOV.