There might be soon. IF (yes, still a reasonably big IF) they could just automate highway driving, a large segment of air trips become really a wash, especiall

There might be soon. IF (yes, still a reasonably big IF) they could just automate highway driving, a large segment of air trips become really a wash, especially if you consider that taking your car someplace gets you a car for your destination, while if you flew it is an additional hassle/expense/delay. So the exercise to me is: how far does it have to be before you would rather fly? If I had reliable highway automated driving, you're already dealing with a 3-4 hour drive being reasonably equivalent to the time and hassle of a 1 hour flight. Plus with a car you can leave on a whim with no prescheduling, pack more with less restrictions, will be cheaper generally (especially if carpooling/family driving), can stop and eat more conveniently, have better internet access typically, can stop and see friends or other places along the way, and again, you have your car for transport when you get there. A self-driving sprinter van converted to an RV would be even better: sleep overnight, have a place to stay at a minimum when you get there. Anyway, I suspect this might hollow out quite a lot of flight demand when it becomes a reality (any decade now). Airlines will be forced to reexamine their policies if an overnight self-driving trip gets you the vast majority of the way to a destination.