Many many pilots commute from Nashville to ORD. They get very frustrated because AA Eagle is always weight restricted! Even if you have jumpseat priveleges, it doesn't hardly help because if the plane is full you most likely will not get in the cockpit because that will make the airplane over the zero fuel weight. It is true that Eagle pilots always come ahead of AA pilots on Eagle flights, and AA pilots always come ahead of Eagle pilots on AA, but from what I hear many of the pilots commute by trying a flight to ORD, not getting on, and then catching Southwest to Midway, and riding the CTA (Chicago Transit Authority) one and a half hours via train to ORD.
Here is the best advice - to which you should pay major attention: DO NOT COMMUTE BY AIR! Live within driving distance of your domicile.