When it comes to Delta’s transcontinental upgrade policy for Medallions, it appears that it’s always changing. Earlier this year when Delta slashed Medallion upgrades on transcontinental routes between JFK-LAX/SFO/SEA, then they re-added then for Diamonds and Platinums 6 hours before the flights.
The newest update is that if you’re a Platinum or Diamond Medallion you can now call up the Medallion line 24 hours before your flight and request to be added to the list.
This new policy went into effect a few days ago and there were some Flyertalk threads about it, but the official policy is that Diamond and Platinum Medallions traveling on a paid ticket (no award ticket) without a companion will be eligible for an upgrade and be added to the Airport Standby List.
This means that Gold and Silver Medallions, companions, Crossover Rewards, SkyTeam Elite Plus, Alaska MVP, Award Tickets and Pay with Miles tickets will NOT be eligible for upgrades on these routes.
Per the Diamond Medallion line, at 24 hours prior to departure you can call to request to be added to the list, however if you do not call, you should still automatically be added at the 6 hour mark.
If you’re flying this route in the next few weeks, call the Medallion line and request to be added to the list!