As Air Canada's flight attendants began their strike Saturday, the airline said it has "suspended all operations" while the labour dispute unfolds.
The attendants gave a 72-hour strike notice earlier this week, after contract talks reached an impasse.
Their union said the company was not addressing key issues such as wages and unpaid work, and the strike took effect shortly after midnight on Saturday.
Soon afterwards, the carrier began delaying and cancelling some flights. On Friday, it expected to scrap 500 flights, affecting 100,000 passengers.
With the strike in effect, the airline announced it would halt flights on its Air Canada and Air Canada Rouge service.
