Prices per share with the private aviation company vary depending on the type of jet you choose â light, mid-size or large-cabin â and how often you fly. The smallest share you can purchase is a 1/16 interest, which gives you 50 hours of flight time a year.Your biggest upfront cost is a one-time acquisition fee: for the Phenom 300 Platinum Edition jet, which is being added to the NetJets fleet later this year, a 1/16 interest, or 50 flight hours, costs $550,000.The largest share possible is a one-half interest, or 400 hours of flight time, which costs $4.4 million.rices per share with the private aviation company vary depending on the type of jet you choose â light, mid-size or large-cabin â and how often you fly. The smallest share you can purchase is a 1/16 interest, which gives you 50 hours of flight time a year.