SheIn offers its SheIn Women's High Waist Flare Skirt in Red or Pink for $17. Coupon code "INST33" drops it to $15.85. With $1.90 for shipping, that's $8 off and the lowest total price we could find. It's available in sizes S to XL.
Note: Uncheck "Add Shipping Insurance to your order" during checkout to remove the additional 99 cent fee. This item ships from mainland China and should arrive in three to four weeks.