Complaints against US Airlines increased up to 70 percent

After the video of a United Airlines passenger being violently dragged off a plane went viral, complaints against airlines in the U.S. soared 70 percent.

According to the U.S. Department of Transportation, 1,909 complaints were filed in April against U.S. airlines, compared to 1,123 complaints in April of last year.

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Paul Hudson, the founder of the passenger rights group, believes the David Dao incident in which the United passenger ended with a broken nose, a concussion and lost two teeth plays a huge part in the rise of complaints.

The report claims that the biggest number of complaints filed in April were against American Airlines with 324, followed by Delta Air Lines with 297 and United Airlines with 265.