Air Canada on Sunday delayed plans to resume limited operations after flight attendants defied a government-mandated back-to-work order and binding arbitration.

Here in the Bay Area, the Air Canada work stoppage left many summer travelers scrambling to re-book on other airlines after their flights were canceled.

The Canadian carrier said it expects to call off 500 flights by the end of Friday. Air Canada said it was suspending its schedule and trying to get passengers booked with other airlines to limit disruptions.