JetBlue and US Airways lead US airline slump

Despite posting significant profits for the final quarter of 2010, shares in JetBlue and US Airways plummeted 8.1% yesterday, as US markets finished the week generally weaker, with falls on the Dow, NASDAQ and S&P indexes. Other carriers that reported share declines included Southwest Airlines (-6.1%), Allegiant Air (-5.3%) and Alaska Airlines (-5%).