Airlines companies shares up at 10 a.m.

IndustriesAssociated Press

Shares of some top airlines companies are up at 10 a.m.:

Delta Air rose $.50 or 1.1 percent, to $45.26.

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JetBlue Airways Corp. rose $.09 or .5 percent, to $19.51.

Southwest Airlines Co. rose $.34 or .8 percent, to $42.13.

United Continental Holdings Inc. rose $.24 or .4 percent, to $61.73.