It seems like last year on UA, there was no charge for standby on the same day, now it is not so. Same for AA within the last 12 months. As for SDC, I have not flown UA enough to know. I would just like same day standby for no fee. The 3 hour SDC, like Delta would also be welcome.
Granted the CO SDC has been truly an excellent tool.
Again anyone CO *Gold care to comment with UA same day change experience? or same day standby without fee?