I'm booked later this month on EX in economy from JFK-MXP. No economy seats are being sold for the flight, so I assume it's already full and potentially oversold in economy (business seats are still available). I hold no status with Emirates and am not even a member of their program (I currently have my Alaska account listed for accrual). I assume innumerable people will be ahead of me for op-ups in the event they are oversold in economy, but is there anything I can do to improve my chances of getting bumped forward? Is it worthwhile joining Skywards and listing that number on my reservation, or am I no better off than having my Alaska Airlines number (I'm not an elite with Alaska)? Am I better off checking in earlier or later? Any other tips?