Air Wisconsin.... only true privately held regional carrier remaining. Very wealthy overlords.

Doubtful a regional carrier would be bought to bring the new carrier to life. It’s not David Neeleman style.

Not one of his startups: Airline creation started with purchasing a Regional carrier.

Morris Air
WestJet
JetBlue Airways
Azul (Brazilian Airlines).

Even as TAP Air Portugal co-owner, he did not dab into purchasing regionals.