Air Canada has confirmed that airport systems, check-in and customer call centers are back online following a nationwide outage Monday.
The outage led to unusually long queues at airports in Calgary, Montreal, Toronto and Vancouver, among other places. According to flight-tracking website FlightAware.com, Air Canada was experiencing nearly 170 total flight delays as of Monday afternoon.
Some travelers took to social media to complain of crowded lines and long waits while others praised airline employees for how they handled the disruption.
Air Canada said the temporary interruption affected customer contact centers and AirCanada.com. The carrier apologized for the inconvenience and resolved the issue in a couple of hours.
IT system outages are not uncommon in the airline industry, with British Airways and Southwest Airlines suffering crippling disruptions of late.
Earlier this month, Air Canada announced that it would double the frequency of its flights from Western Canada to Hawaii while flights from Western Canada to Honolulu, Maui, Kona and other popular destinations will feature Air Canada's new 737 MAX aircraft.
The carrier launched seasonal direct service between Phoenix and Montreal last month.
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