Originally Posted by
codesinvan
I fly YUL as mt primary airport to and also like the MLL.
So, I still fly all Air Canada flights - with YUL as your base - you almost have no choice most of the time. But, I post the miles to Aegean Airlines - so I have Star Alliance Gold status which provides me access to the lounge whenever I fly. It's easier to qualify for Gold on Aegean than either United or Aeroplan.
If you're willing to go to Greece. Making *G on A3 requires 4 flights on A3 metal to get the cheap qualification at 24K miles. For many people, that's not a practical option. If you don't want to fly A3, you need 48K miles, at which point you probably might as well just go for E50K on AC. I suspect that AC or UA is a better option for the OP.