What is "deplaned"

Usage examples of "deplaned".

They stopped in Colorado Springs, Khalil deplaned, but we know he didn't kill Colonel Callum.

He deplaned, stretched his muscles as he strode through the terminal and, slipping on his leather flight jacket, went out into a misty rain to hail a cab.

Having just an hour ago deplaned at Narita, his thoughts were still partially back in Hong Kong.