Carly Fiorina First Class Bank Account ... Still Flying Coach

Carly Fiorina's running her presidential campaign on peanuts -- at least in the air, where the $59 million woman is flying low-cost airlines.

We got this shot of Fiorina sitting at LAX -- not in a first class lounge, but just hanging with the general electorate in the terminal, waiting to board a Southwest flight, aka ... NO FIRST CLASS!!

Fiorina was on her way to Oakland for business meetings, according to her press secretary.

Our sources at LAX tell us she was in the first boarding group -- A22, to be specific -- so at least she probably nabbed an overhead bin for her carry-on.