THE King doesn’t fly commercial! A source tells Page Six that Larry King (above) couldn’t attend the Police Athletic League’s Superstar Dinner at the Pierre the other night honoring District Attorney Robert Morgenthau because he couldn’t get a private jet from Los Angeles. A rep for King, while acknowledging he doesn’t fly commercial, tells us, “Larry has been an emcee many times. He made it clear that unless he was in New York on assignment for CNN, he wouldn’t be able to do it. He never asked for a plane. The PAL loves him.”