The Ritz-Carlton, Millenia Singapore will join Marriott Bonvoy effective December 1, 2026.
Where the Hotel Stands Today
As of November 5, the hotel's own page on the Ritz-Carlton website still says: "Kindly note that our hotel does not participate in Marriott Bonvoy." That's the page to watch for the change.
What to Do Now
Don't plan a Singapore stay around Bonvoy points until you can see a points price for your dates on Marriott's site. When you can, check the points price against the cash rate before you book, using our guide to Marriott Bonvoy points value. For ways to add points in the meantime, see our report on the Amex to Marriott Bonvoy transfer bonus.