Originally Posted by YVR Cockroach
Be thankful you have a lounge to use. There's only 2 lounges at YVR for transborder flights. AC has the nicer one while AS uses the old CP one.
If QF didn't preclear, presumably they could use the BA (or less likely, the CX) int'l lounge.
It's a shame at QF preclears US customs in Vancouver and can't use the CX lounge :-(