In the most infamous case, a bloodied physician was dragged down the aisle of a United Airlines flight in April. The unauthorized passenger had a boarding pass for a United Airlines flight but got on the All Nippon Airlines flight with his brother, who had the correct ticket for the flight, said Mike England, a Transportation Security Administration spokesman. The airline had to pay double the regular salary to get pilots back in the cockpits for the holiday flights. United said that the passenger had canceled that leg of her trip using a mobile app, which the passenger denied. Even after the video of Dao being dragged off the United flight, the Chicago-based airline took only a minimal financial hit.

Source: Los Angeles Times December 28, 2017 00:56 UTC