U.S. stock futures were higher this morning, with the Dow futures gaining around 0.1% on Thursday.

Shares of Southwest Airlines Co. (NYSE:LUV) fell sharply in today's pre-market trading.

The U.S. Department of Transportation and Department of Justice jointly filed a lawsuit on Wednesday against Southwest Airlines for operating “chronically delayed flights” that caused disruptions to passengers.

Southwest Airlines shares fell 3% to $31.83 in pre-market trading

Here are some other stocks moving lower in pre-market trading.

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