Originally Posted by
Flying for Fun
The option to do a SDC is part of the OLCI process, 24 hours before flight time. You will see the option for earlier or later flights. Simply click later flights and options will be presented, if there any with availability. Make your selection.
SDC is available to anyone, the fee is waived for higher Tier Elites. You don't say what you AA status is.
Once completed, you will be on the chosen flight and you will have to wait until 24 hours before the new flight to check-in. A SDC will reset the time on the waitlist for a complimentary upgrade (assuming no more than 2 pax on the PNR for AA Platinum Pro or higher, just yourself otherwise) so you would be lower than other AA Elites that purchased the same fare class after you.
James
My bad, it's in my profile on the left but I see that's not visible on mobile; I'm Plat Pro and will be Exec Plat by the time of this trip. And the flight is LAX-SJC on a Embraer ERJ 175 so honestly any seat I wind up in is fine given there's no middle seats and it's such a short flight.
One other thing, when I SDC do I earn mileage based on the original fare class or the new fare class?