It would be cool if people could just fly like Superman so they could go to any meet.
It would take a while to get there. Flying (in this context) is slower than driving, since you would be moving under your own power and you're not in a vehicle.
Last I heard, Superman could fly faster than a speeding bullet. Context indeed...
My reference point was Minecraft, where flying (in Creative Mode) is faster than walking or running, but nowhere near 15 times faster (the ratio between 60 mph [driving] and 4 mph [walking]). Other games that allow flying without a vehicle, typically in debug-type modes or noclip mode, are similar.
Without the other powers that Superman has, flying faster than a speeding bullet would be really dangerous. First, limits to acceleration. If you accelerate or decelerate too fast, your body can't handle it. Also, hitting something would be fatal, and since you're going that fast, you could easily miss seeing an object. There's also the issue of wind — if you're going 500 mph, you're going to feel a 500 mph wind.