Airlines companies shares up at 1 p.m.

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

Delta Air rose $1.28 or 3.3 percent, to $40.00.

JetBlue Airways Corp. rose $.12 or 1.1 percent, to $10.97.

Southwest Airlines Co. rose $.83 or 3.1 percent, to $27.69.

United Continental Holdings Inc. rose $.60 or 1.5 percent, to $41.67.