On May 20, 2026, Canadian airports in Calgary, Montreal Trudeau, Toronto, Ottawa, and Vancouver encountered a notable number of flight cancellations and delays. Across these hubs, approximately 44 flights were cancelled while 213 faced delays, resulting in considerable operational disturbances.
Several prominent Canadian airlines were affected by these disruptions, including Air Canada, WestJet, Porter Airlines, Jazz Aviation, and Endeavor Air. The interruptions spanned multiple airports, impacting both domestic and international services within these key air travel centers.
Passengers traveling through these airports on that day experienced changes to their schedules due to the cancellations and delays produced by the widespread
disruptions. While the exact causes behind these operational issues have not been disclosed, the event represented a significant interruption to travel plans in major Canadian cities.








