Jetstar/Qantas Domestic question:

[Adam.S]

Just a quick one for those more learned on the subject:

Somewat hypothetical scenario:
I am looking at flying Sydney-Melbourne(YMML) on Jetstar and need to arrive in MEL no later then 9:30am (for example).

There is a Jetstar flight which departs Sydney around 7:30/45am which will get me to Melbourne in time....all going well.
However if this flight is cancelled or delayed (30+mins), the next scheduled JQ flight arrives in MEL approx 11am - too late for me.

In this scenario what is my options and what is standard procedure for the airline?

Will Jetstar put me on their next flight to Melbourne (getting me there well after the needed 9:30am arrival time) or can Jetstar put me on the next available Qantas flight instead as part of the codeshare agreement?

cheers