[QUOTE=Voski;2918173]What is the viability of the ultra-low cost carrier model in the U.S.? As companies like Spirit and Frontier continue to expand their fleet of A320neo aircraft, the profitability of these airlines in the current U.S. economy is undeniable. However, what are the pros and cons of their business model going forward? Are they a threat to the market share and dominance of the legacy carriers?

I'm genuinely interested because the model seems to be successful throughout Europe, however, I wonder if the ULCC model is filling a gap in the market or if it's eroding the profits of carriers like Delta, United, and American.

Moreover, pilots seeking jobs at major carriers have a lot of options nowadays and will hopefully continue to see a hot job market for a few years ahead. The ULCCs seem like great options and alternatives to the 'Big 6,' but I have to question whether these airlines have the career stability (as much as that exists in the airlines) that the Big 6 have...[/QUOTE