Nav Canada air traffic delays dropped by 85% from May through August at major airports as the Canadian air navigation service provider implemented a new operational readiness plan for the summer. The proportion of scheduled flights impacted dropped from 1.54% in 2025 to 0.24% this year at Toronto Pearson (CYYZ), Montréal-Trudeau (CYUL), Calgary (CYYC), and Vancouver (CYVR) airports, it said.
Vancouver marked the largest improvement in “absolute gain,” where the share of scheduled flights facing service delays dipped from 4.42% in 2025 to 0.64% this year. Calgary, meanwhile, had the largest proportional improvement, from 1.16% to 0.05%. These improvements occurred while traffic increased collectively by 0.9% at the four airports, to 394,919 flights, between May 1 and August 31, versus 391,245 a year earlier. In addition, Nav Canada faced World Cup traffic during the period.
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