So, why is it so great for the beauty mogul and her rapper husband to take this particular aircraft on a private trip to wherever it is that they're going? Well, the plane costs an exorbitant amount of money to operate. PrivateFly, a leading global booking service for private charter flights, told Refinery29 by email that this type of aircraft is extremely rare and not available for charter. "The particular plane Kanye and Kim were on private ownership, so we can only estimate the cost required to operate it, but it's in the vicinity of $ 200,000 per hour. 747-200, and a slightly larger version of the same model, and costs about $ 250,000 a hour to operate, "Adam Twidel, CEO of PrivateFly, explained.