They show KXWA to KMSP area, about 550 nm, for $9,976 in a Cirrus, $19,493 in a King Air 200, $21,754 in a PC-12, $26,638 in a King Air C90, $31,016 in a Seneca. Those are all listed in the form "$31,016+" with the plus sign at the end. There is no way they are actually managing all those planes. My guess is that they are searching and/or data mining other charter operations and then they will connect you, directly or indirectly, with the actual operator when you book the flight. Maybe the Seneca operator is farther away and that's why it ends up costing more than a Pilatus. I do know of a charter operator with an SR-22 and another with a King Air 200 in the general vicinity. Oddly, I know of one with a Cessna 340 even closer than the King Air folks but that wasn't listed by KinectAir, despite the 340 being a much better choice for this trip than the Cirrus.
Do we have enough popcorn on hand?