Thanks folks for all the replies. Sounds as I thought - a tight connection but should be ok assuming all goes smoothly. At least when we reach YVR we will already be done with customs. We are on one ticket, though it's a US Air *A reward. I'm really hoping we don't miss the 10am to YVR as the next is two hours later and with a 3 hour hike up to Whistler at the other end would make for a long day. But thanks again