People are really on edge at airports during the holiday travel season … a woman in Miami ripped out a computer monitor and chucked it at a gate agent … and it’s all on video.

The crazy scene played out Tuesday at Miami International Airport, and it shows a woman going absolutely nuts on American Airlines staff in the middle of a crowded gate area … eventually getting her hands on a computer screen and throwing it at the agent.

Stunned onlookers gasp in horror as the computer monitor flies through the air, crashing into the airline worker … who somehow manages to keep her cool amid all the chaos.

The woman reportedly launched into her tirade after noticing her kids had walked away from the gate without telling her. MORE ON TMZ