For NEXUS holders going through T1, usually 1 out of 5 machines work & no priority security screening as of yet (01/12) however, your card does work as your primary ID here.
Terminal 3 at 5:45am: one of the worst security queues I've ever seen. 20 min into wait and still 100+ people off. Delta medallion status gets you nothing on Westjet so Delta elites beware.
If traveling to Canada for biz, tell Customs "Business" instead of "Work". "Work" signals you're taking a Canadian job and Customs will give you more grief.
Toronto Pearson is the largest and busiest airport in Canada, handling nearly 36 million passengers in 2022. The airport is named in honour of Lester B. Pearson, who served as the 14th Prime minister of Canada and received the Nobel Peace Prize in 1957 for his humanitarian work in peacekeeping.