Looking into the current session, Alaska Air Gr Inc. (NYSE:ALK) shares are trading at $49.55, after a 0.46% decrease. Over the past month, the stock fell by 21.12%, but over the past year, it actually went up by 15.51%. With questionable short-term performance like this, and great long-term performance, long-term shareholders might want to start looking into the company's price-to-earnings ratio. How Does Alaska Air Gr P/E Compare to Other Companies?The P/E ratio measures the current share price to the comp ...