A few years ago, I flew back from a game with an NFL team once-it was a chartered commercial plane from a legacy US carrier, set up the same as if it were a regular commercial flight.
The Head Coach was in seat 1A, then the other coaches and the players had coach seats, though it seemed each had his own set of 3 seats. The biggest difference I recall is the enormous meal given out on the way home. Those hamburgers were pure steak and must have been a pound or more each.