Originally Posted by
djp98374
Not true
I have had many ground stops to hubs due to volume. Sure this could be aftermath of weather delays which generally happen every other day
Volume delays are determined by ATC. Volume is an airport (or airspace) constraint, not an airline one.
Just going back through the last 7 days of GDP/GS's, exactly zero of them were carrier requested programs. In that same time there were dozens, if not hundreds of ATC initiated programs. Thousands if you include MIT restrictions. That is normal.
FWIW: I used to be an ATC coordinator in SOC for a major airline (not DL).