Learjet 45XR vs Citation CJ4 Gen2
The Learjet 45XR leads, topping 5 of 7 compared metrics.
The Bombardier Aviation Learjet 45XR (introduced 2004) and the Cessna / Textron Aviation Citation CJ4 Gen2 (introduced 2023) 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 Citation CJ4 Gen2 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.
Learjet 45XR vs Citation CJ4 Gen2: the key differences
- The Citation CJ4 Gen2 delivers 8% more range (Learjet 45XR: 2,000 nm; Citation CJ4 Gen2: 2,165 nm).
- The Learjet 45XR delivers 3% more cruise speed (Learjet 45XR: 464 kt; Citation CJ4 Gen2: 451 kt).
- The Citation CJ4 Gen2 delivers 11% more passenger capacity (Learjet 45XR: 9 seats; Citation CJ4 Gen2: 10 seats).
- The Citation CJ4 Gen2 is the newer design (introduced 2023 versus 2004 for the Learjet 45XR), a gap of 19 years that usually shows up in avionics, cabin systems and fuel burn.
- The Learjet 45XR is the larger aircraft by maximum takeoff weight (21,500 lbs versus 17,110 lbs), which typically buys more cabin and payload at the cost of higher trip economics.
Which mission suits which aircraft
Both aircraft are built for transcontinental missions, so outright range rarely separates them — the call leans on cabin (the Citation CJ4 Gen2 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?
On published specifications the Citation CJ4 Gen2 leads on both range and cabin capacity, so it suits operators who want maximum mission flexibility from a single airframe. The Learjet 45XR 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.
More comparisons
Learjet 45XR vs Citation CJ4 Gen2: FAQs
Which has the longer range, the Learjet 45XR or the Citation CJ4 Gen2?
The Citation CJ4 Gen2 has the longer published range — 2,165 nm versus 2,000 nm for the Learjet 45XR.
Does the Learjet 45XR or Citation CJ4 Gen2 seat more passengers?
The Citation CJ4 Gen2 carries more passengers at maximum configuration — up to 10 seats, compared with 9 on the Learjet 45XR.
Which is faster, the Learjet 45XR or the Citation CJ4 Gen2?
The Learjet 45XR cruises faster, at 464 kt versus 451 kt for the Citation CJ4 Gen2.
Which is newer, the Learjet 45XR or the Citation CJ4 Gen2?
The Citation CJ4 Gen2 is the newer design, introduced in 2023 versus 2004 for the Learjet 45XR.
Is the Learjet 45XR or the Citation CJ4 Gen2 the larger aircraft?
By maximum takeoff weight the Learjet 45XR is the larger aircraft — 21,500 lbs versus 17,110 lbs for the Citation CJ4 Gen2.
Should I buy the Learjet 45XR or the Citation CJ4 Gen2?
On published specifications the Citation CJ4 Gen2 leads on both range and cabin capacity, so it suits operators who want maximum mission flexibility from a single airframe. The Learjet 45XR 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 Learjet 45XR vs Citation CJ4 Gen2?
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.