Originally Posted by
DFWFairy
I am flying AS SEA-YVR and YVR-LAX on UA same day. Is there a way I could make my connection at YVR without going through immigration? Thanks.
I believe you will be required to claim your luggage, if any, clear customs and immigration, check-in you luggage with United and then proceed through US pre-clearance to board your United Fight.
You can check out the information at the following link.
http://www.yvr.ca/en/passengers/navigate-yvr/passenger-guides
James