Originally Posted by
irishguy28
However, I cannot guarantee that there is an interline agreement and that it would be observed for you
I can now tell you that the Air Canada website lists JU as one of their
non-Star Alliance interline partners. Baggage should be checked through automatically between JU and AC flights on the same ticket. But it is always a very good idea to show the baggage tags to ground staff of the first flight on the different airline, just in case there are issues transferring between airlines on such tickets.