$Southwest Airlines(LUV.US)Southwest Airlines is too expensive. American Airlines' stock price is severely undervalued, and it's time to reflect the dividends of economic prosperity. The governments of China and the United States have agreed to significantly increase flights between the two countries to meet the needs of personnel exchanges. American Airlines' P/E ratio is only about 5 times, and there is a strong demand for valuation recovery. American Airlines' stock price should be around $30.