NEW YORK (AP) — Shares of some top airlines companies are up at 10 a.m.:

Delta Air rose $.31 or 3.5 percent, to $9.27.

JetBlue Airways Corp. rose $.16 or 3.2 percent, to $5.02.

Southwest Airlines Co. rose $.13 or 1.5 percent, to $9.05.

US Airways Group rose $.52 or 5.0 percent, to $10.83.

United Continental Holdings Inc. rose $.99 or 5.1 percent, to $20.26.