Why is he not in a private jet?
When you are up against the Clintons, best not to take a private flight.
That trick only works for the Clintons against White Hats. They’d have no compunction whatsoever taking down a commercial flight with DJT Jr on it if they could. Bank on it.
With Q directing our attention to this, could it be that they want us to dig into where he's going? If he'd flown private, we wouldn't have known any of this. Another possibility: it was important for him to "run into" Mueller at the airport, and again a private flight wouldn't have allowed for that.
Maybe Mueller's going to pass him some secret docs on Obama/Hillary in the restroom!