Originally Posted by
dodgeflyer
I read somewhere on this forum that Delta posts mileas as soon as the BP is swiped at the gate. By this logic, I would assume a "cancellation" of the flight will lead to all points being deducted again from the account by the same automated process they are put in. I would then assume miles will post once the new flight is made, and most likely being booked in to Y.
Not sure about the deduction process, but you are correct about the posting. The swiping of the boarding pass leads to a real time posting of the miles if you are posting to a Delta SM Account. I know this because I have logged into my account after boarding and have already seen the miles for that leg of my flight. I think a couple of times they weren't there for whatever reason, but they have never failed to be there when I have checked again after landing.