It’s a long weekend in Ontario and COC is discounting Saturday evening’s Così fan tutte and Sunday’s matinee of Un ballo in maschera.  There are two deals.  The first allows you to buy at rush prices without queuing up at the box office. Tickets start at $25 and Orchestra seats (regularly $224) are $70. Go here and use the promo code WINTERRUSH.  The second deal is box office, in person, only.  Starting at 11 a.m. on the day of each performance, Orchestra level Rush seats are priced at $40.