Citation X+ vs G400
The G400 leads, topping 4 of 7 compared metrics.
Put the Cessna / Textron Aviation Citation X+ (introduced 2014) beside the Gulfstream Aerospace G400 (introduced 2023) and the trade-offs sharpen fast. 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.
Citation X+ vs G400: the key differences
- The G400 delivers 21% more range (Citation X+: 3,460 nm; G400: 4,200 nm).
- The Citation X+ delivers 11% more cruise speed (Citation X+: 528 kt; G400: 476 kt).
- The G400 delivers 58% more passenger capacity (Citation X+: 12 seats; G400: 19 seats).
- The G400 is the newer design (introduced 2023 versus 2014 for the Citation X+), a gap of 9 years that usually shows up in avionics, cabin systems and fuel burn.
- The G400 is the larger aircraft by maximum takeoff weight (74,600 lbs versus 36,600 lbs), which typically buys more cabin and payload at the cost of higher trip economics.
Which mission suits which aircraft
The G400 is the stronger fit for long-haul and transatlantic missions — its 4,200 nm of range removes fuel stops on those legs. The Citation X+, at 3,460 nm, is better matched to transcontinental missions, where lower trip cost counts for more than outright reach. If most of your flying sits inside the Citation X+'s range, the G400's extra capability is range you pay to carry but rarely use.
Which should you choose?
On published specifications the G400 leads on both range and cabin capacity, so it suits operators who want maximum mission flexibility from a single airframe. The Citation X+ can still be the smarter buy on acquisition cost, operating economics, runway performance, or current availability — the factors that rarely show up in a spec sheet. Our acquisition advisory team can model both against your actual mission profile before you commit.
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Citation X+ vs G400: FAQs
Which has the longer range, the Citation X+ or the G400?
The G400 has the longer published range — 4,200 nm versus 3,460 nm for the Citation X+.
Does the Citation X+ or G400 seat more passengers?
The G400 carries more passengers at maximum configuration — up to 19 seats, compared with 12 on the Citation X+.
Which is faster, the Citation X+ or the G400?
The Citation X+ cruises faster, at 528 kt versus 476 kt for the G400.
Which is newer, the Citation X+ or the G400?
The G400 is the newer design, introduced in 2023 versus 2014 for the Citation X+.
Is the Citation X+ or the G400 the larger aircraft?
By maximum takeoff weight the G400 is the larger aircraft — 74,600 lbs versus 36,600 lbs for the Citation X+.
Should I buy the Citation X+ or the G400?
On published specifications the G400 leads on both range and cabin capacity, so it suits operators who want maximum mission flexibility from a single airframe. The Citation X+ can still be the smarter buy on acquisition cost, operating economics, runway performance, or current availability — the factors that rarely show up in a spec sheet. Our acquisition advisory team can model both against your actual mission profile before you commit.
Still weighing up the Citation X+ vs G400?
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.