Aeropostale Coupon: $10 off $50 plus online coupon code Leave a Comment Print this new Aeropostale coupon and Save $10 off $50 purchase in-stores only today through March 19, 2014. For online shopping use the following coupon codes: $20 Off $100 + Free Shipping at P.S. from Aero! Use Code MAR20 – Valid through 3/9! Top it Off… Tops Starting at $8 at Aeropostale! Get Comfy… Sweats starting at $14 at Aeropostale! Up to 70% Off Clearance at Aeropostale!