I think the rules say something about Jetstar being a valid carrier in certain circumstances, but not many. Thanks for the info about the protection I would have if the carrier does change. I have open dates on most of my tickets, but plan to date a lot of it soon.


Yep:

61N . 2. TRAVEL ON CODESHARES OPERATED BY THE CARRIERS
62N . LISTED ABOVE IS PERMITTED. OTHER CODESHARE
63N . SERVICES NOT PERMITTED.
64N . EXCEPTION 1: FOR TICKETS ISSUED ON/AFTER
65N . 01JUL05, TRAVEL NOT PERMITTED ON CX BETWEEN HONG
66N . KONG AND HANOI.
67N . EXCEPTION 2: QF CODESHARE SERVICES OPERATED BY
68N . JQ/JETSTAR ARE PERMITTED EXCEPT FOR POINT OF SALE
69N . AUSTRALIA AND NEW ZEALAND.