Based on a clue on Coach Inge's instagram, I've determined that they're using Fuzzy Zoeller's plane, Bogey Bird II, from Jeffersonville. With the tail # you can even track its whereabouts.
https://flightaware.com/live/flight/N404FZ
Go-IU-Win
https://flightaware.com/live/flight/N404FZ
Go-IU-Win