What Delta SkyMiles unlocks

Delta SkyMiles' Diamond Medallion has ten free status matches and four conditional ones. Two of the free ones need nothing but the card itself: one converts straight to American AAdvantage Executive Platinum, the other to United MileagePlus Premier 1K. Matching costs nothing up front — AA asks for 67,000 Loyalty Points every four months to keep Executive Platinum, and United asks for 20 PQF plus 7,500 PQP within a 120-day window to keep Premier 1K.

A separate ladder runs through car rental: a free match turns Diamond into Sixt Platinum, which itself converts to Avis President's Club. From there, one branch reaches Enterprise Plus Platinum in the US and Canada, kept up afterward with 24 rentals or 85 rental days a year. The other reaches Hertz President's Circle instead, a match allowed once every five years and valid through the end of the second calendar year after approval.

A shorter route pairs a JetBlue TrueBlue Mosaic 2 match with American AAdvantage's regular Platinum tier — a lower rung than the Executive Platinum above — to reach National Emerald Club Executive Elite in the US and Canada. The longest free chain runs that same JetBlue and American Platinum route through United's Premier Gold, a tier below the Premier 1K above, picks up Alaska Atmos Gold along the way, and finishes at Southwest Rapid Rewards A-List; the reference below maps every hop.

Hotel and cruise status take real effort, not just a card. Reaching World of Hyatt Discoverist means earning about 100,000 AAdvantage Loyalty Points on that same Platinum tier, not simply holding status. From Discoverist, one branch matches free into Best Western Rewards Platinum. The other converts to MSC Voyagers Club Silver — a once-per-lifetime move that lapses without an MSC cruise within three years — and that Silver status matches again, also once per lifetime, into Explora Club Silver.