For a limited time, members, who choose to earn airline miles in participating frequent flyer programs, will now receive quadruple the miles for stays at any of more than 3,400 Marriott® International hotels in 70 countries, beginning with the second stay. In many cases, members will earn up to 8 miles per dollar spent. The Quadruple Miles promotion runs from June 1-August 31, 2011. Members must register (navigate to My Account>Profile>Edit Earning Preferences). Note that this includes multiple airlines, not just Delta: • Aeroplan (Air Canada & Star Alliance member airlines) • British Airways • Cathay Pacific Airways • Delta Air Lines • Frontier Airlines • Hawaiian Airlines • JetBlue Airways • Jet Airways JetPrivilege® • LifeMiles (Avianca-TACA) • Southwest Airlines • United Airlines • US Airways
As for value, the short answer is it's not a good deal if you stay at Courtyard, Fairfield, or SpringHill. Those properties only give you 1 (4 promo) miles per dollar but would give you the full 10 (12 silver, 12.5 gold, 15 platinum) points per dollar. The other properties are a better ratio. Marriott, JW, and Renaissance would give 2 (8 promo) miles per dollar. And even though Residence Inn and TownePlace give the lower 1 (4 promo) keep in mind that's compared to only 5 (6 silver, 6.25 gold, 7.5 platinum) you would earn in points. Here's a breakdown... Standard Points/Miles Conversion Awards: 2000mi = 10000pts = 5pts/mi 5000mi = 20000pts = 4pts/mi 10000mi = 30000pts = 3pts/mi 25000mi = 70000pts = 2.8pts/mi 50000mi = 125000pts = 2.5pts/mi And what you would earn at each property: Marriott, Renaissance, JW 8mi = 12, 12.5, 15pts = 1.5, 1.56, 1.88pts/mi Courtyard, Fairfield, SpringHill 4mi = 12, 12.5, 15pts = 3, 3.13, 3.75pts/mi Residence, TownePlace 4mi = 6, 6.25, 7.5pts = 1.5, 1.56, 1.88pts/mi Keep in mind that the 4x miles starts with your second stay so take that into account. Overall this promo is better for silver elites as well since you get the same bonus miles but wouldn't earn as many points with the 20% bonus compared to Gold/Platinum.