So the former prez could negotiate the release of those two detained U.S. journalists. According to AP, Clinton flew to North Korea on movie producer/director Bing’s private Boeing 737. Since it’s currently illegal for American planes to fly to North Korea, Bing had to iron out details with the U.S. government over several days. Now, according to ABC News, the real estate heir and the owner of Shangri-La Entertainment will pay an estimated $200,000 for the round-trip flight.