U.S. flights allowed to resume, but Canadians warned to expect delays

A United States-wide grounding of aircraft on Friday afternoon has been lifted hours after it was ordered, with Canadian officials telling travellers to expect delays as operations return to normal.

Airports across Canada suspended flights to and from the United States, with Air Canada cancelling the rest of those flights for the rest of the day.

Nav Canada says it will continue to ensure air traffic remains safe and efficient in Canadian airspace.

The privately run, non-profit corporation, which operates Canada’s civil air navigation system, says passengers should check the status of their flight with airlines.

U.S. officials are blaming the countrywide ground stop order on communications problems at regional air traffic control centres.

The U.S. secretary of homeland security says there’s no indication the communications failure was related to a cyberattack.

This report by The Canadian Press was first published Nov. 13, 2026.

— with files from The Associated Press