Originally Posted by
javabytes
I have never - not once in the better half of a decade and million miles - been able to change flights online (outside of the IROPS rebooking tool). I've always had to call.
Without knowing how many times you've actually tried, that's not very informative. I've done SDC changes several times in the past online, but only by going through the check-in link. The change flight option on the reservations page is guaranteed to fail 100% of the time.