April 2 (Reuters) - Domino's Pizza DPZ.O said on Wednesday customers could use the DoorDash DASH.O app to place their orders, in a new partnership, as the pizza giant looks to bolster its delivery business and expand its U.S. user base.

Restaurants and fast-food chains have been more reliant on discounts in recent years than ever to attract consumers, who are cutting down on expensive and nice-to-have items, including dining out, to save dollars amid still-high inflation.

Domino's, which missed fourth-quarter same-store sales estimates, had said in February it would continue with its promotional efforts, including 50% off on online pizza orders in 2025.

The pizza chain had then extended its exclusivity agreement with Uber Eats UBER.N for online orders until May. Analysts at the time also anticipated a potential deal between Domino's and DoorDash for orders.

Domino's said a pilot partnership with DoorDash is already in place in select locations, and would be followed by a planned nationwide U.S. launch in May this year and across Canada later in 2025.

The orders placed on DoorDash's platform would be delivered by Domino's drivers.

(Reporting by Anuja Bharat Mistry in Bengaluru; Editing by Shilpi Majumdar)

((AnujaBharat.Mistry@thomsonreuters.com))