I'm no Grenada expert, by any stretch. The airfare wasn't too bad from the E. Coast for this Oct. I was able to use A.A. miles (which I wanted to burn for a variety of reasons) and was able to get there in a day out of Hartford. I looked for a friend and the price was $640 R/T....not great, but not too, too bad. It did entail a LOOONG layover in MIA, but it was about the same out of Hartford as NY, or BOS.....just throwing that out there...I have no idea what the OP is going to find out of Vancouver....