Southwest knows a little about running economical airline, thus i'll hereby illogically intrudea, a convicted kibbitzer if not grouchy cheap-butt gadfly

Surely it's been enough tested and is considered not profitable, but that was perhaps during the brunt of the darn recession, but now ... perhaps the passenger volume may be substantively better

The price of car fuel is so variable, and sometimes it does seem to make air travel by itself as the valid alternative, but then requires $ for transportation/car rental though baggage ha$$le is famously not so on southwest