Airlines companies shares down at 1 p.m.

Shares of some top airlines companies are down at 1 p.m.:

Delta Air fell $1.50 or 3.9 percent, to $37.10.

JetBlue Airways Corp. fell $.18 or 1.7 percent, to $10.71.

Southwest Airlines Co. fell $.45 or 1.6 percent, to $27.26.

United Continental Holdings Inc. fell $1.39 or 3.5 percent, to $38.49.