Originally Posted by
Sixth Freedom
Caution - that sounds like a recipe for auto-cancel and, if you use a travel agent, a debit memo...
No, it's fine, I booked direct on AA website using this trick and they ticketed without an issue. Depends how you segment it on ITA, you can use married segments to your favour - LAX-YVR might not have I class but PHL-LAX-YVR does...