美国航空股价下跌1.7%，达美航空下跌1%

Core Viewpoint - Airline stocks in the United States experienced a decline, with American Airlines down 1.7%, Delta Air Lines down 1%, and United Airlines down 1.5% [1] Company Summary - American Airlines saw a stock price decrease of 1.7% [1] - Delta Air Lines experienced a 1% drop in stock price [1] - United Airlines' stock fell by 1.5% [1]