Originally Posted by
AA_EXP09
It should be no problem-they will rebook you on a later flight.
Source: I have seen a PAX rebooked on YVRYYC after being sent to secondary in YVR from a KE flight.
I can second that. I even got rebooked on a DL YVR-SLC direct instead of my AC/UA YVR-SFO-SLC routing after a 90minute secondary. ^
Disclaimer: DL flight was not eligible for miles