G400 vs G450
The G400 leads, topping 2 of 7 compared metrics.
The Gulfstream Aerospace G400 (introduced 2023) and the Gulfstream Aerospace G450 (introduced 2005) are two aircraft buyers regularly weigh against each other. Both are business jets, which makes them natural cross-shopping rivals. The clearest separation between them is cabin capacity, where the G400 carries more passengers. Below we compare them spec by spec, then break down which aircraft suits which mission.
6 more specs per aircraft — ceiling, climb, cabin, dimensions and more — are free with an account.
G400 vs G450: the key differences
- The G450 delivers 4% more range (G400: 4,200 nm; G450: 4,350 nm).
- The G400 delivers 4% more cruise speed (G400: 476 kt; G450: 459 kt).
- The G400 delivers 19% more passenger capacity (G400: 19 seats; G450: 16 seats).
- The G400 is the newer design (introduced 2023 versus 2005 for the G450), a gap of 18 years that usually shows up in avionics, cabin systems and fuel burn.
Which mission suits which aircraft
Both aircraft are built for long-haul and transatlantic missions, so outright range rarely separates them — the call leans on cabin (the G400 seats more), trip economics and what is actually available on the market. Match the airframe to how you fly most weeks, not to the headline range figure.
Which should you choose?
Choose the G450 when nonstop range is the deciding factor, and the G400 when cabin capacity and payload matter more; the G400 holds the cruise-speed edge. The right answer ultimately depends on acquisition cost, maintenance-program status, and what is actually available on the market — talk to our acquisition advisory team to pressure-test the choice against your missions and budget.
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G400 vs G450: FAQs
Which has the longer range, the G400 or the G450?
The G450 has the longer published range — 4,350 nm versus 4,200 nm for the G400.
Does the G400 or G450 seat more passengers?
The G400 carries more passengers at maximum configuration — up to 19 seats, compared with 16 on the G450.
Which is faster, the G400 or the G450?
The G400 cruises faster, at 476 kt versus 459 kt for the G450.
Which is newer, the G400 or the G450?
The G400 is the newer design, introduced in 2023 versus 2005 for the G450.
Should I buy the G400 or the G450?
Choose the G450 when nonstop range is the deciding factor, and the G400 when cabin capacity and payload matter more; the G400 holds the cruise-speed edge. The right answer ultimately depends on acquisition cost, maintenance-program status, and what is actually available on the market — talk to our acquisition advisory team to pressure-test the choice against your missions and budget.
Still weighing up the G400 vs G450?
Specs only take you so far. Our advisors give an independent recommendation based on your mission, budget and how you actually fly — and represent your side through to purchase.