I've searched the board and if the answer is here, I'm too thick to see it. Flight LAX-EWR on Wednesday pm, upgraded with miles. Waitlisted for mileage upgrade on Thursday am, EWR-IAH.

Does the waitlist expire on Tuesday pm (T-24 for LAX-EWR) OR on Wednesday am (T-24 for EWR-IAH)?

Want to be sure I get on the EUA standby list after waitlist expires. I know my chances for an EUA as a silver are almost non-exisitent, nevertheless.