Archived 27 May 2026
Archived side-by-side comparison from the Freestream library
This comparison covers three out-of-production heavy jets that competed in the upper tier of the large-cabin segment. The Gulfstream G450 represents a true intercontinental heavy with a 45-foot cabin and the longest range of the group, whilst the Bombardier Challenger 605 and Dassault Falcon 2000LX offered large-cabin capability at considerably lower acquisition and operating cost.
The G450, Challenger 605, and Falcon 2000LX each have distinct operating profiles: the G450 is a substantially heavier aircraft with significantly higher hourly costs, suited to longer stage lengths; the 605 and 2000LX are often compared directly as alternatives at comparable capability levels. All three types have completed their production runs and are traded actively on the secondary market. Data is drawn from Conklin & de Decker (JSSI) using standardised assumptions.
The Gulfstream G450 is a large-cabin, long-range twin-engine business jet produced by Gulfstream from 2004 to 2017, powered by two Rolls-Royce Tay 611-8C engines and equipped with the PlaneView avionics suite based on Honeywell Primus Epic. With a maximum cruise speed of 500 knots and a seats-full range of 4,070 nautical miles, the G450 carried up to thirteen passengers in a three-zone cabin measuring 45.1 feet in length. A total of 355 aircraft were built.
| Production | 2004 – 2017 |
| Long-Range Cruise Speed | 445 kts |
| Maximum Cruise Speed | 500 kts |
| Range, Seats-Full | 4,070 nm |
| Ferry Range | 4,425 nm |
| Rate of Climb | 3,760 ft/min |
| Engine-Out Ceiling | 25,000 ft |
| Balanced Field Length | 5,578 ft |
| Cabin Dimensions (L × W × H) | 45.1 × 7.3 × 6.2 ft |
| Baggage Volume (Total) | 169 cu ft (internal) |
| Max Takeoff Weight | 74,600 lb |
| Basic Operating Weight | 43,000 lb |
| Usable Fuel | 29,281 lb |
| Variable Cost Per Hour | $6,525 |
| Annual Fixed Cost | $1,408,831 |
The Challenger 605 is a large-cabin twin-engine business jet produced by Bombardier from 2006 to 2016, powered by two General Electric CF34-3B engines and equipped with the Rockwell Collins Pro Line 21 avionics suite. With a maximum cruise speed of 488 knots and a seats-full range of 3,756 nautical miles, it provided intercontinental range within a wide fuselage measuring 28.4 feet in length and 8.17 feet across, which is the widest cabin cross-section of this comparison group.
Challenger 650 shown; the 605 shares the airframe and is the predecessor variant.
| Production | 2006 – 2016 |
| Long-Range Cruise Speed | 425 kts |
| Maximum Cruise Speed | 488 kts |
| Range, Seats-Full | 3,756 nm |
| Ferry Range | 4,123 nm |
| Rate of Climb | 4,345 ft/min |
| Engine-Out Ceiling | 20,000 ft |
| Balanced Field Length | 5,950 ft |
| Cabin Dimensions (L × W × H) | 28.4 × 8.17 × 6.08 ft |
| Baggage Volume (Total) | 115 cu ft (internal) |
| Max Takeoff Weight | 48,200 lb |
| Basic Operating Weight | 27,150 lb |
| Usable Fuel | 19,852 lb |
| Variable Cost Per Hour | $4,808 |
| Annual Fixed Cost | $1,278,526 |
The Falcon 2000LX is the extended-range variant of the Dassault Falcon 2000 family, featuring winglets and an additional fuel tank that deliver a seats-full range of 3,891 nautical miles. Produced from 2003 to 2014 with 144 aircraft delivered, it is powered by two Pratt & Whitney Canada PW308C engines and features the Honeywell Primus Epic EASy flight deck. The cabin measures 31.2 feet in length and 7.7 feet wide, carrying up to ten passengers. Despite its name within the super-midsize classification, the 2000LX's range and price position it directly against lower-end heavy jets.
Falcon 2000 family render shown.
| Production | 2003 – 2014 |
| Long-Range Cruise Speed | 440 kts |
| Maximum Cruise Speed | 478 kts |
| Range, Seats-Full | 3,891 nm |
| Ferry Range | 4,185 nm |
| Rate of Climb | 4,350 ft/min |
| Engine-Out Ceiling | 21,010 ft |
| Balanced Field Length | 5,761 ft |
| Cabin Dimensions (L × W × H) | 31.2 × 7.7 × 6.2 ft |
| Baggage Volume (Total) | 131 cu ft (internal) |
| Max Takeoff Weight | 42,800 lb |
| Basic Operating Weight | 24,500 lb |
| Usable Fuel | 16,660 lb |
| Variable Cost Per Hour | $4,956 |
| Annual Fixed Cost | $1,140,211 |
Key metrics across all three platforms. The G450's significantly higher operating cost reflects its substantially greater size and range capability. Hover a column to highlight; best values in each row are accented. Acquisition cost excluded by design.
| G450 | Challenger 605 | Falcon 2000LX | |
|---|---|---|---|
| Performance | |||
| Range, Seats-Full | 4,070 nm | 3,756 nm | 3,891 nm |
| Ferry Range | 4,425 nm | 4,123 nm | 4,185 nm |
| Maximum Cruise Speed | 500 kts | 488 kts | 478 kts |
| Long-Range Cruise Speed | 445 kts | 425 kts | 440 kts |
| Maximum Altitude | 45,000 ft | 41,000 ft | 47,000 ft |
| Rate of Climb | 3,760 ft/min | 4,345 ft/min | 4,350 ft/min |
| Engine-Out Ceiling | 25,000 ft | 20,000 ft | 21,010 ft |
| Balanced Field Length | 5,578 ft | 5,950 ft | 5,761 ft |
| Max Takeoff Weight | 74,600 lb | 48,200 lb | 42,800 lb |
| Cabin | |||
| Cabin Length | 45.1 ft | 28.4 ft | 31.2 ft |
| Cabin Width | 7.3 ft | 8.17 ft | 7.7 ft |
| Cabin Height | 6.2 ft | 6.08 ft | 6.2 ft |
| Passenger Capacity | 13 | 10 | 10 |
| Baggage Volume (Total) | 169 cu ft | 115 cu ft | 131 cu ft |
| Operating Economics | |||
| Variable Cost / Hour | $6,525 | $4,808 | $4,956 |
| Fuel / Hour | $2,585 | $1,645 | $1,400 |
| Engine Reserves / Hour | $1,448 | $938 | $1,278 |
| Annual Fixed Cost | $1,408,831 | $1,278,526 | $1,140,211 |
Assumes 250 flight hours per year, $5.00 per US gallon Jet A, $105 per hour maintenance labour, 600 nm average trip.
Performance and operating cost data sourced from Conklin & de Decker (JSSI) via Freestream's subscription, pulled 27 May 2026. All figures reflect the standard production variant of each aircraft type unless otherwise stated.
Hourly variable and annual fixed costs are modelled at 250 flight hours per year, $5.00 per US gallon Jet A, $105 per hour maintenance labour, and a 600 nm average trip. Crew, hangar, insurance, and training are included in the fixed line. Acquisition cost is excluded.
The G450 is classified as a heavy jet and carries considerably higher operating cost than the Challenger 605 or Falcon 2000LX. The comparison is nonetheless relevant given overlapping secondary-market price ranges for older G450 examples and later 605 or 2000LX examples. Principals considering this set should evaluate mission profile and stage-length requirements before drawing direct cost comparisons.
Freestream Aircraft operates as an independent advisory firm, representing principals in the acquisition, sale, and management of business aircraft worldwide. With active coverage across the large-cabin and heavy-jet segment, Freestream provides counsel on platforms including the G450, Challenger 605, and Falcon 2000LX.
Aircraft in this category involve significant acquisition, maintenance, and crewing costs. Freestream's team provides independent guidance grounded in market knowledge and technical expertise, supporting buyers and sellers at each stage of the transaction process.