Originally Posted by
Silver Fox
I think that is true for any airline that with <24 hours to departure that it is handed over to the airport to control from then on in. I think the only chance would be to try and get to the airport check-in desk via phone or get to the airport very early and see if they can change seats. Good luck.
Most airlines you can pick your seat via OLCI at the T-24/36hr mark. Now most will lockout the reservation agents from selecting seats at this point. AZ/AF/KLM I know once OLCI opens, phone agents can't do seat assignments, but you can via OLCI, app, or at a kiosk.