There are so many places,
Charter hub is a place to start. You can find carter companies by entering your zip code. Just call them up and ask for a quote.
A light jet will charter at approximately $2500 an hour.
Hope it helps.
A good going rate to go by is 40,000 for ten hours of flight time with a reputable company, of four thousand an hour. You’re looking at a minimum of eighteen hours of time for all four legs (private jets travel a bit slower than larger, commercial aircraft) with a price tag of at least 72,000 =]
You can get a great estimate for the trip here: