DoorDash promo: Save up to $50 on Costco orders over $100 (may be targeted)
DoorDash is running a Costco deal: 20% off Costco orders of $100+ (excluding taxes and fees) with code COSTCO20, capped at $50 and valid through 11/01/2026. Free delivery is available for DashPass members on orders over $60. The promo can be stacked with Costco.com Gift Cards (20% off) for extra savings. Some readers report it being targeted or unavailable in certain locations.