A private jet charter allows you to enjoy all the benefits of private air travel, without any up-front costs or maintenance fees. Everything is taken care of for you. You are only required to pay for the service.
For the most part, an on-demand private jet charter works similar to your typical airline.1) You schedule a flight, 2) walk into a terminal, 3) then take the trip to your destination.
But what makes it differ from your standard commercial carrier is that you do not have to worry about any security pat-downs, long flight lines, or the endless wait for your luggage. Instead, upon scheduling and paying for the flight cost, all you need to do is enter, wait, and board. And most of the time, you get to leave as quickly as possible.
That said, you do not necessarily need to own an aircraft to make use of the service. The most prominent hurdle is finding a broker where you can book the flight. But with online applications and options, finding the right plane no longer seems to be a challenge.
Take a look of the of the Private Jets Traffic - Top 20 European Airport Pairs in 2018 (interactive chart).