Dassault Falcon 8X vs Gulfstream G650ER
The Matchup
The Falcon 8X and G650ER represent fundamentally different philosophies in ultra-long-range aviation. The 8X is Dassault's tri-engine approach — prioritizing fuel efficiency, airport access, and operational flexibility. The G650ER is Gulfstream's twin-engine powerhouse — maximizing range, speed, and cabin width. If you're cross-shopping these two, you probably already know what matters most to you. This comparison will confirm it — or change your mind.
Head to Head
| Dassault Falcon 8X | Spec | Gulfstream G650ER |
|---|---|---|
| 6,450 NM at Mach 0.80 | Range | ★7,500 NM at Mach 0.85 |
Over 1,000 NM more range — and at a faster cruise speed. This is the G650ER's most dominant advantage. City pairs like Dubai–Los Angeles or Singapore–San Francisco are nonstop in the G650ER but require a fuel stop in the 8X. | ||
| Mach 0.90 | Max Speed | ★Mach 0.925 |
The Gulfstream cruises faster and maintains better range at higher speeds. The speed advantage compounds over long flights — on a 6,000 NM trip, the G650ER arrives 30–45 minutes sooner. | ||
| 7 ft 8 in | Cabin Width | ★8 ft 6 in |
Ten inches wider. This is a significant comfort difference, especially on long flights. Wider seats, wider aisle, wider beds. The G650ER's cross-section is simply more spacious. | ||
| 42 ft 8 in | Cabin Length | ★46 ft 10 in |
Four feet longer. The G650ER accommodates three generous zones; the 8X's three zones are tighter. | ||
| 6 ft 2 in | Cabin Height | ★6 ft 5 in |
Three inches. The G650ER feels airier. | ||
| 12–16 | Passengers | ★13–19 |
More passenger capacity reflects the larger cabin volume. | ||
| 51,000 ft | Ceiling | 51,000 ft |
| 5,880 ft★ | Takeoff Distance | 6,299 ft |
Over 400 feet shorter takeoff. Combined with Dassault's fly-by-wire precision, the 8X accesses airports the G650ER can't — including London City, Lugano, and Samedan/St. Moritz. | ||
| 2,330 ft★ | Landing Distance | 3,000 ft |
670 feet shorter. This is a massive advantage. The Falcon's landing performance opens a completely different set of airports. | ||
| 3× Pratt & Whitney Canada PW307D (6,722 lbs each) | Engines | 2× Rolls-Royce BR725 (16,900 lbs each) |
Three smaller engines vs. two larger ones. The Falcon's tri-engine configuration burns less total fuel (280 vs 399 gal/hr — a 30% advantage) but has three engines to maintain. The BR725 has deeper service infrastructure. | ||
| $37.41M–$69.7M Vref (July 2026) | 2026 Acquisition Market Reference | $45.95M–$47.9M asking — 2016 examples |
Market research reviewed October 8, 2026: Dassault Falcon 8X: $37.41M–$69.7M Vref (July 2026); Gulfstream G650ER: $45.95M–$47.9M asking — 2016 examples. These retain their different source dates and measurement bases. Public asking examples, model-wide valuations and production positions are not interchangeable achieved sale prices. Sources: https://www.duncanaviation.aero/files/aircraft-sales/Business-Jet-Model-Market-Summary-Metric.pdf | https://www.globalair.com/aircraft-for-sale/gulfstream-g650er | ||
Over 1,000 NM more range — and at a faster cruise speed. This is the G650ER's most dominant advantage. City pairs like Dubai–Los Angeles or Singapore–San Francisco are nonstop in the G650ER but require a fuel stop in the 8X.
The Gulfstream cruises faster and maintains better range at higher speeds. The speed advantage compounds over long flights — on a 6,000 NM trip, the G650ER arrives 30–45 minutes sooner.
Ten inches wider. This is a significant comfort difference, especially on long flights. Wider seats, wider aisle, wider beds. The G650ER's cross-section is simply more spacious.
Four feet longer. The G650ER accommodates three generous zones; the 8X's three zones are tighter.
Three inches. The G650ER feels airier.
More passenger capacity reflects the larger cabin volume.
Over 400 feet shorter takeoff. Combined with Dassault's fly-by-wire precision, the 8X accesses airports the G650ER can't — including London City, Lugano, and Samedan/St. Moritz.
670 feet shorter. This is a massive advantage. The Falcon's landing performance opens a completely different set of airports.
Three smaller engines vs. two larger ones. The Falcon's tri-engine configuration burns less total fuel (280 vs 399 gal/hr — a 30% advantage) but has three engines to maintain. The BR725 has deeper service infrastructure.
Market research reviewed October 8, 2026: Dassault Falcon 8X: $37.41M–$69.7M Vref (July 2026); Gulfstream G650ER: $45.95M–$47.9M asking — 2016 examples. These retain their different source dates and measurement bases. Public asking examples, model-wide valuations and production positions are not interchangeable achieved sale prices. Sources: https://www.duncanaviation.aero/files/aircraft-sales/Business-Jet-Model-Market-Summary-Metric.pdf | https://www.globalair.com/aircraft-for-sale/gulfstream-g650er
Cost Comparison
Market research reviewed October 8, 2026: Dassault Falcon 8X: $37.41M–$69.7M Vref (July 2026); Gulfstream G650ER: $45.95M–$47.9M asking — 2016 examples. These retain their different source dates and measurement bases. Public asking examples, model-wide valuations and production positions are not interchangeable achieved sale prices. Sources: https://www.duncanaviation.aero/files/aircraft-sales/Business-Jet-Model-Market-Summary-Metric.pdf | https://www.globalair.com/aircraft-for-sale/gulfstream-g650er Operating-cost figures remain historical planning estimates. Compare both aircraft using the same annual hours, fuel price, crew basis, reserves and exclusions.
Model these costs with your own hours, fuel price, and crew.
Open Cost Comparison Tool →Which One Wins?
Falcon 8X
This isn't even close. The 8X's short-field performance opens London City, Aspen, Lugano, Samedan, Cannes-Mandelieu, and dozens of other airports the G650ER simply can't reach. If your regular destinations include challenging runways, the 8X is your aircraft.
G650ER
Over 1,000 NM more range at a faster cruise speed. If you fly the longest intercontinental routes nonstop — Middle East to US West Coast, Singapore to San Francisco — the G650ER is the only answer.
Falcon 8X
30% less fuel burn. $400K–$500K less per year in operating costs. The tri-engine configuration is genuinely more efficient and the savings compound year after year.
G650ER
Wider, longer, taller. The G650ER's cabin is objectively more spacious. If you spend 12+ hours in the aircraft regularly, that space matters enormously.
Falcon 8X
Europe has short runways, challenging approaches, and airports that large jets struggle with. The Falcon 8X was essentially designed for European operations with intercontinental reach. Dassault's support network in Europe is also stronger than Gulfstream's.
The Final Take
These are fundamentally different aircraft designed for different mission profiles. The G650ER is the better all-around ultra-long-range jet — more range, more speed, bigger cabin. If you fly globally between major airports with long runways, the G650ER is the superior aircraft. But the Falcon 8X has capabilities the G650ER simply doesn't. If your operations include challenging European airports, mountainous destinations, or you prioritize fuel efficiency above all else, the 8X is the right choice. It's also a genuinely different flying experience — Dassault's fly-by-wire precision and the tri-engine smoothness create a ride quality that Falcon loyalists swear by. The honest advice: if 80% of your missions are intercontinental point-to-point between major airports, buy the G650ER. If your missions mix intercontinental range with access to difficult airports — particularly in Europe, the Alps, or mountainous terrain — the Falcon 8X earns its place.
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Frequently Asked Questions
For range, speed, and cabin size — yes. For airport access, fuel efficiency, and operating costs — the Falcon 8X wins. They serve different mission profiles.
If you need to access short or challenging runways regularly, buy the 8X. If maximum range and cabin space are your priorities, buy the G650ER.
Tri-engine design provides better fuel efficiency (three smaller engines burn less total fuel than two larger ones), better short-field performance, and redundancy for overwater operations. It's been Dassault's approach for large-cabin Falcons since 1986.
Historical planning estimate; obtain current aircraft-specific pricing. Approximately $400K–$500K per year less than the G650ER at 400 hours, primarily due to 30% lower fuel burn.
Yes — it's one of the few ultra-long-range jets certified for London City's steep approach. The G650ER cannot operate there.
Market research reviewed October 8, 2026: Dassault Falcon 8X: $37.41M–$69.7M Vref (July 2026); Gulfstream G650ER: $45.95M–$47.9M asking — 2016 examples. These retain their different source dates and measurement bases. Public asking examples, model-wide valuations and production positions are not interchangeable achieved sale prices. The sample does not establish a fixed premium or faster resale for every aircraft.
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Let's TalkLast updated: 2026-10-08