Originally Posted by
canadiancow
I once flew SFO-YVR-YYZ-YOW.
YYZ-YOW was cancelled, and I was rebooked the next morning.
Baggage staff said there was no way for me to get my bags that night.
Definitely a special (and understandable) circumstance, but it is possible to have a bag stay overnight at YYZ. Even if it's not what you want
That is different in that they treat it as you and your bags have been separated (by the airline not the traveler). At that point it can go on any flight.