Canada has introduced an Electronic Travel Authorization (eTA) entry requirement for visa-exempt foreign nationals flying to or transiting through Canada.
As of March 15, 2016, travellers who do not require a visa to fly to Canada need to apply for an eTA
This includes passengers travelling on an Irish passport. Applying for an eTA is simple, inexpensive ($7 Canadian) online process that takes minutes to complete.
To apply, travellers must have a valid passport, a credit card, and an e-mail address. An eTA is electronically linked to a passenger's passport and once approved, it is valid for 5 years or until passport expiry.
As of September 30, 2016, passengers who arrive at the airport without an eTA should expect to experience delays in their travels. For this reason, travellers should apply for their eTA before booking your flight to Canada.
For more information or to apply for an eTA, visit Canada.ca/eTA.