Originally Posted by
ac777
May be mistaken, but I seem to have read somewhere that flights cannot be changed once travel has begun. Do check it out before pinning your hopes on change.
You can change both a AC and a Star Reward, before and after departure, however conditions apply to Star rewards* and they'll ding you a CAD55 date change fee on each reward type.
*Star Rewards - once the journey has commenced, the only changes they will allow you to make will be those to date/time
only and then only if you hold an E-Ticket. No changes of any kind permitted on paper tickets for Star once journey commenced.
No changes to routing on a Star Reward once journey started, regardless of ticket type. You can change routing on an AC reward even after journey has started.