Originally Posted by
cavitron
Assuming the whole flight is AC (or SR) then, yes, your bags will be checked through. However on the way back you will need to collect/recheck your bags at YYZ if you're flying ZRH-YYZ-YUL. And, yes, the YUL-YYZ leg is domestic.
Is this the case just because of these particular airports or is it true no matter what airports are involved as long as it's all on AC metal. For instance, I'm going YXY (Whitehorse) - YVR - LHR all on AC - will they check my bags right from YXY to LHR or will I have to go get them in YVR and check them through customs myself? Sorry if this is a dumb question, this is my first non-North American flight ever!