Major computer outage hits Montreal-Trudeau Airport

Montreal-Trudeau airport on July 18, 2025. (Martin Daigle, CityNews)

By The Canadian Press

Posted October 25, 2025 11:39 am.

Last Updated October 25, 2025 11:44 am.

Operations at Montreal-Trudeau Airport were disrupted Saturday morning by major computer outages, causing delays.

In a message posted on social media, Montreal-Trudeau Airport warned that passenger check-in had been affected, and that flight schedules were not up to date on its website.

Related:

By 8:45 a.m., systems were gradually restarting and were back up and running, according to an email from the airport.

Passenger check-in was operational again.

The outage was caused by one of the airport’s service providers, the statement said.

–This report by La Presse Canadienne was translated by CityNews

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