The other star performer among the big airlines has been US Airways, which reported an operating margin of 4.4% over the first nine months of this year, giving it the confidence to go for Delta.

另一家业绩优秀的大型航空公司为全美航空，据报道该公司今年前九个月的营运利润率(operating margin)为4.4%，使全美有信心并购达美。