1. If your flight is scheduled before 10 a.m., you’re asked to arrive at the airport at least three hours early;
2. If your flight is after 10 a.m., you’re asked to arrive at the airport at least two hours early;
3. Electronics should be fully charged for possible inspection;
4. Any device larger than a smartphone should be removed from its protective case or covering for possible inspection;
5. WestJet advises passengers to arrive at their departure gate at least 45 minutes early.

http://www.ctvnews.ca/canada/how-new-security-measures-will-affect-your-next-u-s-bound-flight-1.3510519