Exclusively for its Prime members, Amazon offers the Chinet Heavy-Weight Paper Plates 225-Count Big Party Pack in Classic White, model no. B015RO8QX6, for $14.98 with free shipping. Excluding the below mention, that's the lowest total price we could find by $7. Each 8-3/4" plate is leak- and cut-resistant, microwavable, and made from 100% recycled material.
Note: This item usually ships within one to three weeks. Need it sooner? For its members, Sam's Club offers it for about the same via in-store pickup. (Prices vary by ZIP code; choose your local club location to see the price.)