My sister lives 500km away from Perth, but needs to be there every couple of weeks. When family visits, it's a huge pain to have to drive 6 hours after the long

My sister lives 500km away from Perth, but needs to be there every couple of weeks. When family visits, it's a huge pain to have to drive 6 hours after the long flight to Perth from pretty much anywhere (the closest city in Australia, Adelaide, is a nearly 4 hours flight away - plus airport commute time, security etc.). We would pay a lot of money for a flying taxi that could go to Perth in an hour or so, or even more if it could fly all the way to Adelaide, 2,130 km away. I suspect many regions around the world have people in similar conditions (some very rich people in the area own helicopters, but the price to fly and maintain them is extremely prohibitive for everyone else).