Air Canada has suspended plans to restart operations after the union representing 10,000 flight attendants decided to defy a return-to-work order.

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.

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 union for 10,000 striking Air Canada flight attendants said on Monday they won’t return to work even though the strike, now in its third day, has been declared illegal.