I tried looking here and in the SDC/SDS thread, but could not find any information about Same-Day Standby Upgrades easily. Does anyone have experience with them? Do they clear before all Medallion upgrades since they are paid? Are they reasonable compared to the current $564 FCM (CUN-MSP) being offered? Info from Delta.com:
The Same-Day Standby upgrade option allows you to upgrade your flight for a small fee, provided space is available and your ticket is eligible.
This option applies to specific flights and routes:- Within North America (except for JFK-LAX and JFK-SFO)
- To/from Aruba, Bermuda, Grand Cayman (Cayman Islands), Los Cabos (Mexico), Montego Bay (Jamaica), Nassau (Bahamas), Providenciales (Turks and Caicos), San Juan (Puerto Rico), and St. Thomas (US Virgin Islands)
- Between Atlanta and Costa Rica, St. Maarten and St. Lucia
- Between Cancun (Mexico) and Atlanta, Cincinnati, Detroit, Indianapolis, Memphis and Minneapolis