New Bombardier Challenger 350 Flies Into VistaJet's U.S Portfolio VistaJet continues to expand their Challenger fleet with the acquisition of Challenger 350 business jets. It appears to be Thomas Fhlor's vision to run an all Bombardier Challenger and Global fleet of aircraft since it best meets the needs of the company. Just recently, VistaJet retired/sold the last of its Bombardier Learjet aircraft. The new Challenger 350s are essentially replacements for the Learjets which offer a larger cabin and also more technologically advances in-cabin and flight-deck systems. VistaJet recently look delivery of a Challenger 350 that is destined for their U.S-based service portfolio.