Airlines companies shares down at the close of trading

Shares of some top airlines companies were down at the close of trading:

Delta Air fell $.53 or 1.1 percent, to $46.45.

JetBlue Airways Corp. fell $.18 or .9 percent, to $19.71.

Southwest Airlines Co. fell $1.20 or 2.8 percent, to $42.29.

United Continental Holdings Inc. fell $1.53 or 2.4 percent, to $61.98.