WestJet says it's back online after global outage, but more disruptions expected

Travellers found themselves facing long lineups and cancelled flights on Sunday after a system-wide outage at WestJet airlines over the weekend. The Calgary-based airline said it has resolved Saturday's outage, which affected its entire network, but cautioned further disruptions are expected in the days ahead. COO Diederik Pen released a statement on Sunday saying the outage was caused by a "cooling issue" in its primary data centre, and more than 200 flights had to be cancelled. "Unfortunately, due to the scope of yesterday’s network impact, we continue to see residual disruptions. Further delays and cancellations in the coming days will be required, as we work diligently to recover our operations," Pen said in the statement. He said all systems were back online, but noted the airline is "still experiencing some instability." Passengers, however, faced hours-long lineups to re-book cancelled flights, and some had already been through the process more than once. <br/>