"I know you're a pilot," Ianto throws back, twisting again in the other man's grasp. "I also know that they haven't given you your own transportation back yet. So I don't know what you think you're going to do. Repossess someone else's? Not everyone else is a pilot out there, you're going to have a hell of a time finding anything."

It's not entirely bluffing. There's only one easy way back and forth from the satellite, and that's teleporting there. Which Ianto isn't about to tell the other man he's able to do all on his own. Not and risk him disappearing on him entirely. He's just got to hope that John doesn't find any convenient Gundams lying around. Or that he doesn't realize his abilities with technology have, as Ianto understands it, gotten something of a boost.