Dassault Falcon 6x vs Dassault Falcon 900lx vs Gulfstream G650er

In category terms, the Dassault Falcon 6X and Falcon 900LX are large-cabin business jets, while the Gulfstream G650ER sits in the ultra-long-range, flagship class with a larger overall cabin and higher long-haul mission focus. For range, the Falcon 900LX is typically cited around 4,750 nautical miles, the Falcon 6X around 5,500 nautical miles, and the G650ER about 7,500 nautical miles, making the Gulfstream the clear choice for the longest nonstop city pairs. Passenger capacity overlaps but differs by typical use: the Falcon 900LX is commonly configured for about 12–14 passengers, the Falcon 6X for roughly 12–16, and the G650ER often for about 14–19 depending on layout. Overall, the 900LX emphasizes three-engine flexibility and strong transcontinental capability, the 6X adds a newer, wider-cabin design with more range than the 900LX, and the G650ER prioritizes maximum range and high-end long-duration comfort.