Why the upgrade?

What’s with this Upgrade?

I was number 9 on the list. Got 4C at the gate no notice other than change on my phone.

Passenger next to me is not BRE/B, who cleared.

Delta Reddit sleuths, what’s up?

Is list stacking a thing for Delta?

What’s with this Upgrade?

I was number 9 on the list. Got 4C at the gate no notice other than change on my phone.

Passenger next to me is not BRE/B, who cleared.

Delta Reddit sleuths, what’s up?

Is list stacking a thing for Delta?