Type in "charter" and "jet" on your favorite search engine like yahoo or google, you'll get bunches of hits from people "advertising" on the web. To do the same, talk to your ISP company or find a company that creates web sites.
You have to remember, you are basically just putting an ad in the world wide yellow pages. You will be one of thousands of charter operators looking for customers.
Like every other business, you need a business plan, your target customer(s) and then a way to attract those customers to you - price, quality, service, specialized capability, etc.
So are you going to build "a better mousetrap", "a cheaper mousetrap" or "a not really a mousetrap but we do eliminate mice" business?
Good luck