A shortage of air traffic controllers has led to delays and cancellations at airports across Canada in recent weeks, and the staffing shortfall is not expected to be fully resolved anytime soon.

In the past month alone, NAV Canada — the organization that runs and operates Canada’s civil air navigation system — has announced temporary service interruptions at airports in Vancouver , Calgary , Toronto and Montreal , all due fully or in part to staffing constraints.

Vancouver, Toronto and Montreal saw multiple impacts during that time frame.

“This does create a really frustrating situation for passengers — candidly, we share that frustration,” Vancouver International Airport communications director Stephen Smart told Global News Tuesday night amid the latest round of delays, w

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