Originally Posted by
live5
I wouldn't call mainline vs. SkyWest "just as well."
I try stay loyal to Delta but if I'm flying between two major US cities (LGA-ORD, LGA-BOS, LAX-SFO, etc, etc) I would rather fly another airline's mainline service than take the "will this flight be canceled or significantly delayed" risk with a regional airline DBA Delta Connection.
If it's an actual "shuttle" and not just called a shuttle then generally it doesn't matter. If it's an actual shuttle then the airlines tend to make sure those operate regardless.