Originally Posted by
The _Banking_Scot
Hi,
If flying from YVR to SFO, you will " pre clear" US immigration customs at YVR ( ie you go through customs at YVR and once at SFO you are treated like a domestic arrival with no immigration or customs at SFO)
Regards
TBS
+ 1
OP - You will be fine. I've done in and out E coast US and Canada quite a bit including flights just in transit.