> The business practice of bumping is not illegal. Airlines oversell their scheduled flights to a certain extent in order to compensate for “no-shows.” Most of the time, airlines correctly predict the “no shows” and everything goes smoothly. But sometimes, passengers are bumped as a result of oversales practices.
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> it is legal for airlines to involuntarily bump passengers from an oversold flight when there are not enough volunteers
> If there are not enough passengers who are willing to give up their seats voluntarily, an airline may deny you a seat on an aircraft based on criteria that it establishes
Not to mention:
> Other Reasons You May Be Removed From a Flight
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* Attempting to interfere with the duties of a flight crew member.
* Disrupting flight operations or engaging in unruly behavior.
As well as: FAA regulations state that “no person may assault, threaten, intimidate, or interfere with a crewmember in the performance of the crewmember’s duties aboard an aircraft being operated.”