Originally Posted by
Academic
FYI: The more recent rules don't count the US and Canada as one country for departure/return. It doesn't affect yoor trip, but now you can't leave from SFO and return to YVR.
We got around that by having an ongoing ticket to SEA from YVR - just didn't get on the flight.
The Star Alliance board is a lot of help - also I used a TA I found here and it really helped. PM me if you want his name