Airlines companies shares down at 10 a.m.

Industries Associated Press

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

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Delta Air fell $1.93 or 4.8 percent, to $38.38.

JetBlue Airways Corp. fell $.16 or 1.4 percent, to $10.83.

Southwest Airlines Co. fell $.40 or 1.5 percent, to $27.33.

United Continental Holdings Inc. fell $2.22 or 5.3 percent, to $40.04.