If we had a transporter and we put a person from the year 1600 high in the sky in a jumbo jet, they would peer out the window horrified, because they could not see the evidence of why they were up there.
I can demonstrate the principle of flight by blowing between two strips of paper. I don't have faith in airplanes. I have trust in airplanes, because they fly all the time and arrive safely. The odds are in your favor when you fly in an airplane.
I don't really have faith in anything, actually. I have plenty of trust, though. Like the old Arabic expresssion: "Trust in God - but tie up your camel."