Originally Posted by
YVR Cockroach
Bus from the domestic terminal lower level to the Airport Station transfer point, transfer 98 towards Vancouver and either: disembark at 41st Avenue for the 41 (or 43) bus to UBC, at 25th Avenue (King Edward) for the 25 bus towards same, or at Broadway for the 99, 17 or 9 bus (make sure it says UBC on it). You have to cross Granville to go to the west bound bus stop.
For transit schedules, see
www.translink.bc.ca
IIRC, the bus to from the airport to the transfer station is the 424.
Just to add onto that; having taken both the 17 and 99, try to catch the 99 if you can. It's an express bus and make the trip out there a lot faster! It also seemed to come by more frequently. Granted this is based on two days experience in March, that's my $0.02. Oh and the 98 should continue onto Richmond.
If you think you'll be bussing a lot, I strongly encourage getting a day pass. They're $9 for one day (not 24 hrs, but a day regardless of start time) which is great since its $3+ each way from YVR/Richmond to UBC. Also, they do 3 door loading on the 98 and 99, so if you have a transfer, monthly pass, or day pass, just enter through the middle or rear door of the bus.