DoorDash is investing $6 million in discounts for local restaurants in six cities this month. During the campaign, customers will be able to get 30% off orders of $15 or more (up to $8) from participating local restaurants. Customers can also earn 40% off or more on their next order when they order from multiple local spots during Flavor Fest. Participating restaurants will be featured in a special Flavor Fest section at the top of the DoorDash app. A Flavor Fest pilot in the Washington, D.C., area earlier this year included more than 300 local restaurants and a $700,000 investment from DoorDash.