Charter, also called air taxi or ad-hoc flights require certification from the associated country's regulating body such as the FAA in the U.S. The regulations are differentiated from typical commercial/passenger service by offering a non-scheduled service. In the U.S. these flights are regulated under FAA Part 135. There are some cases where a charter operator can sell scheduled flights, but only in limited quantities.
JetSmarter, around since 2013, is an example of a player in the private aviation space selling shared flights. The company operates on a membership model: Fliers pay a minimum of $15,000 a year and book seats on already scheduled flights through the JetSmarter app, which lists more than 150 domestic and international trips a day. Trips under three hours are included in the cost of the membership while longer ones are an average of $300 a person, according to Sergey Petrossov, the company’s chief executive officer; most flights have an average of eight to 10 passengers.
Manufactured by Canadian aerospace firm Bombardier, the Challenger name encompasses a family of aircraft billed as “the best-selling business jet platform of the last decade.” All Challenger jets feature fuel-efficient turbofan engines, true “walk-about” cabins, and a supercritical wing design offering impressive climb and cruise performance at lower thrust settings.
About 70% of the fleet was in North America at the end of 2011. The European market is the next largest, with growing activity in the Middle East, Asia, and Central America. In 2015 the total airplane billing amounted to US$21.9 billion, and 718 business jets were delivered to customers across the globe : 199 (27.7%) by Bombardier Aerospace, 166 (23.1%) by Cessna, 154 (21.4%) by Gulfstream Aerospace, 120 (16.7%) by Embraer and 55 (7.7%) by Dassault Falcon.