Overview
- Service was restored early Monday, with the agency warning travellers may still face short waits as backlogs clear.
- The disruption began Sunday during routine systems maintenance, which CBSA says triggered an unforeseen technical problem.
- Toronto Pearson, Montréal–Trudeau and Calgary reported longer customs lines, and some arrivals were held at gates as deplaning paused due to capacity constraints.
- Border officers redirected travellers to manual inspection lines and maintained identity verification and security screening throughout.
- Transport Minister Steven MacKinnon said the government is monitoring the situation and urged travellers to check flight status, while reports noted ArriveCAN declarations and some pre-departure passport checks were affected.