A new entry requirement, known as an Electronic Travel Authorization (eTA), is now in effect for visa-exempt foreign nationals travelling to or transiting through Canada by air. To make sure travelling to Canada stays easy and stress free, leniency will be shown to travellers who are caught unaware until November 9, 2016.
However, starting November 10, 2016, all air travellers, including Canadian citizens, will need to have appropriate documents to travel to Canada before they can board their flight. A valid Canadian passport is the only reliable and universally accepted travel document that provides proof that you are a citizen and have the right to enter Canada without being subjected to immigration screening. Make sure that the expiry date of the passport is well beyond your planned return date.
Exception for Americans and American-Canadians:
American citizens, including American-Canadian citizens, must carry proper identification and meet the basic requirements to enter Canada. You do not need a Canadian passport, a Canadian visa or an eTA to fly to Canada if you are travelling with a valid U.S. passport. Learn more