Delta Skymiles?

I have about 100k miles in my Delta account apparently, only just noticed!
Is there any way of transferring these to my Virgin one? Not given my Delta ff number on any bookings for years. I understand that they will never expire , unless I do!

No you can't move them over. But you could use them as a DL partner award on VS!

I thought they never expired unless you had an activity in the last X months i.e. like VS miles and 3 years.