The Falcon 8X, first delivered on 5 October 2016, is derived from the 7X and has an extended range of 6,450 nmi (11,945 km; 7,423 mi) made possible through engine optimization, aerodynamic refinements as well as an increase in fuel capacity.

The trijet has a combined thrust of 18,000lb (80kN) provided by Honeywell FX5s, a new design, or a Pratt & Whitney Canada PW306 growth version.

Based on Honeywell Primus Epic avionics, its EASy cockpit is developed for the Falcon 2000EX and 900EX and controls are fly-by-wire.

It has a horizontal stabiliser at mid-height and a retractable tricycle landing gear, and three rear-mounted Pratt & Whitney PW307A turbofan engines: two on the side of the fuselage and one in a center position, and room for 19 passengers and 3 crew.

[22] EASA grounded the Falcon 7X fleet after a report from Dassault Aviation regarding an uncontrolled pitch trim runaway during descent in one of its jets in May 2011.

[26] Initial results of investigation showed that there was a production defect in the Horizontal Stabilizer Electronic Control Unit which could have contributed to the cause of the event.

[28] After four years of investigation, the Bureau d'Enquêtes et d'Analyses pour la Sécurité de l'Aviation Civile published its final report in June 2016.

It was found that incorrect nose-up commands to the trimmable horizontal stabilizer were caused by a soldering defect on the pin of its electronic control unit provided by Rockwell Collins.

[29] The 6,450 nmi (11,945 km; 7,423 mi) range Falcon 8X was announced at the European Business Aviation Convention & Exhibition in May 2014.

[2] A strict weight control allows most operators to match or best Dassault's 36,800 lb (16.7 t) estimate BOWs for a fully equipped aircraft with three crewmembers.

The aircraft will be equipped with a Universal Electronic Warfare Capability (Capacité Universelle de Guerre Électronique or CUGE) developed by Thales.

The information gathered by the systems will then be analyzed by eavesdropping and intelligence specialists and fed into the French Armed Forces' databases.

Europe has 117 aircraft, 45% of the fleet: 18 in Switzerland, 13 in France, eight in Luxembourg, seven in Belgium, Denmark, Germany and Portugal, six in Russia, four in Ukraine among others.

Antwerp's Flying Group operates five aircraft, Shell Oil has four in Rotterdam and Dassault Falcon Service at Paris-Le Bourget manages four, as does Volkswagen AG in Wolfsburg.

[38] Planet Nine Private Air LLC, a premium ultra long range charter based in Los Angeles, operates five Falcon 7X.

Three are based in China, two in São Paulo, and others are registered in San Marino, Malta and Monaco, throughout the Mediterranean, Middle East and India.