Michelle Obama Shuts Down Aspen Airport -- Cool Your Jets, Richie Rich

Michelle Obama and the extremely rich collided in the air Friday ... when the Aspen Airport apparently shut down for an hour to facilitate a fun-filled ski weekend for Michelle and her kids.

The First Lady flew in late yesterday to the ridiculously in-your-face show of wealth on the tarmac. According to the New York Post, the airport was shut down for security reasons and some private jet setters were just PISSED.

It's one of the most congested weekends of the year at the Aspen Airport ... several hundred jets descend on the ski city for the long President's Day weekend.

And speaking of presidents ... the current one was not there. He went to Cali to deal with the drought.