Originally Posted by
ironmanjt
before departure any change triggers complete reprice.
I don't think this is true. A change of date to any segment other than the first one should not trigger a reprice, even before departure.
I also think that changes of routing after departure should not trigger a reprice of the whole itinerary, just the $125 fee, unless a continent is being added.
The rules are explained more clearly in this document:
https://www.oneworld.com/images/faqs/oneworldFAQPDF.pdf .
Whether you can get a QF agent to actually follow these rules is a different matter.
I'm new to this so I welcome corrections.