Airlines are scrambling to fix the unsustainable crisis caused by too many cheap flights

• An influx of cheap economy-class seats hitting that market in recent months has depressed airfares.
• This has weighed down airline earnings despite strong demand for flights.
• Airlines are cutting seat capacity and leaning on premium cabins to improve financial performance. 

It may not feel like it, but there are a lot of cheap flights to be had this summer — and the influx of low-priced, often money-losing economy seats has airlines scrambling.