That sounds just outright miserable. Hellish is how I would describe a week long drive, not a few hour flight. There's surely a lot to improve on flights but it seriously isn't that bad compared to driving and having to exert mental and physical effort on it for so long.
Really what I want is a train. A good set of trains. They should travel at a fast speed and go to many different places.
For a week long trip I'll do a 24ish hour drive each way over a flight. Able to bring everything I want, have a car, easily bring the dogs. It's a win all around for me.