L.L.Bean offers its L.L.Bean Women's Premium Washable Linen Dress in Cirrus Blue or Mallard Green for $29.99 with free shipping. That's $30 off and the lowest price we could find. It's available in petite and regular sizes 4 to 20, although not in all size/color combinations.
Talbots offers the Talbot's Women's Cube Print Knit Dress for $62.99 plus $8 for shipping. That's $66 off list and the lowest total price we could find. It's available in sizes S to XL and petite P to M.