The processing time for a Canadian eTA is very quick, and travelers from Mexico can usually expect a rapid response. The vast majority of applications are processed and approved within 24 hours — some almost immediately.
However, in rare cases, it may take a little longer to receive confirmation in the event of delays or a high volume of applications during the busy tourist season.
The Canadian eTA will be sent electronically to the email address provided on the application. This is why it is important to enter an email address that you frequently check, so as to not miss the confirmation email.
After the application has been approved, the Canadian eTA will be digitally linked to the applicant’s Mexican passport. Although the Canadian Immigration border officer will be able to view the information on the traveler’s eTA on their computer when they present their passport, it is advisable to also print a copy in the unlikely event of problems with the system.