Originally Posted by
schnapperin
Since I never transit in the US - specially not international-international what can I expect? I will need to clear custom but will I need to pick up my check in bags aswell?
Carry on is with that trip simply not possible.
Just looking into the position flights and much easier to fly back from SEA then YVR to SFO
Going into the US from elsewhere except most Canadian & a handful of European airports, you'll claim your bags after immigration but before customs and then drop your bags at the recheck prior to reclearing security for your onward flight. YVR-SFO, you'll pass through US preclearance at YVR and be shown a picture of of your baggage when making your declaration.