It’s now earnings season once again, and investors are certainly taking a cautious tone with certain groups of stocks today. Besides tech stocks, which are having a very negative day with the Nasdaq down a whopping 1.7% this afternoon, airline stocks are also seeing marked declines in today’s session.Shares of Delta Airlines (NYSE:DAL), American Airlines (NASDAQ:AAL), and United Airlines (NASDAQ:UAL) are down between 4% and 6% at the time of writing, as Delta was the first of the major carriers to announce ...