Econ to be more familiar with all the ways the airline is trying to screw you.
Geography so you know where the hell you are going and what's being passed.
Spanish for those lonely 72 hour layovers in Guadalajara. It may get you laid or save you from being sold into slavery by the drug cartels.
High level math and physics have absolutely nothing to do with flying unless you want the option to design airfoils. As a pilot, too much math and physics is a waste of brain cells, but they sure look good on a transcript of you get good marks.
Make sense?