The charge dates back to his arrest on May 25, 2014 when authorities found half a gram of pot marijuana with the 27-year-old rapper during a search at El Paso International Airport, reported Billboard magazine.
"See You Again" hitmaker, had a few brushes with the law over the years.
In May 2012, police caught him with marijuana following a performance at the Lawrence Joel Veterans Memorial Coliseum in Winston-Salem, NC.
A month prior to that, Khalifa was charged with marijuana possession in Nashville.