Air Canada said about 240 flights scheduled from Sunday afternoon onward were cancelled, with service now expected to resume Monday evening.

The airline said the union “illegally directed its flight attendant members” to ignore the labour relations board’s order to return to work.

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On Sunday, more than 200 striking workers and supporters rallied outside Calgary International Airport, many carrying signs and chanting demands for higher wages and better working conditions.

Air Canada pulled its financial guidance through year-end, citing the impact of a strike by flight attendants that has caused the airline to cancel hundreds of flights.

About 10,000 Air Canada flight attendants walked out on Saturday, grounding the airline and disrupting travel for about 130,000 pass

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