Since we began tracking Marriott discounts, we've found a total of 93 coupons and deals. These include 85 promo codes, 8 sales, and no free shipping deals. Save up to 20% off with our best Marriott coupon. 20% Off On Your Order with code YXI. Highest ever Marriott discount: Get $250 Off On The Joseph's Dining Outlets with code D60