Originally Posted by
uafurlough
It gets complicated when coming back to the states from an international destination, due to picking the bags up and clearing customs/immigration at point of debarcation, if you end up flying into a different city. Vancouver shouldn't be a problem, since they speak the same language, and can get the bags switched to a different flight.
I'm currently in Paris, trying to get home from my ski trip.
Additionally, you clear US Customs IN Vancouver before departing rather than at your destination.