While "Delta" (the airline) and "Marriott Bonvoy" (the hotel loyalty program) are separate entities, they have a deeply integrated partnership, and Delta Hotels by Marriott is a core brand within the Bonvoy portfolio. If you stay at a Delta Hotel, you earn Marriott Bonvoy points and receive elite status benefits just as you would at a Westin or Sheraton. Furthermore, Delta Air Lines and Marriott Bonvoy have a long-standing "dual-enrollment" partnership that allows high-tier elite members to earn miles and points simultaneously. For instance, Marriott Bonvoy Titanium and Ambassador members often receive complimentary Delta Silver Medallion status, while Delta Diamond and Platinum Medallion members can earn 3 Bonvoy points per dollar spent on Delta flights. In 2026, this partnership remains one of the strongest in the travel industry, designed to capture the "total travel spend" of frequent flyers by rewarding them for both their time in the air and their nights on the ground at Delta-branded or other Marriott properties.