The decision by the union representing the 10,000 workers means that travel chaos will continue for at least a second day. Air Canada said it had suspended its reopening plan until Monday evening.

Air Canada on Monday withdrew its third quarter and full-year earnings guidance due to a disruption in operations after its flight attendants went on strike.

Cancellations of Air Canada flights continued across Saskatchewan on Sunday, as the airline announced it will not be resuming operations yet after its flight attendant union vowed to disobey a back-to-work order.