Citation CJ3 vs Citation CJ4: how the two fleets are really flown
On three of the four chapters' lead measures, the gap inside each fleet is bigger than the gap between the Citation CJ3 and the Citation CJ4. The clearest difference is salt air: the middle Citation CJ3 at 1%, the middle Citation CJ4 at 0%.
Cessna Citation CJ3 fleet statistics →Cessna Citation CJ4 fleet statistics →
Fatigue
On hours per landing, the gap between the types is smaller than the spread inside either fleet: the middle Citation CJ3 at 1.4 : 1, the middle Citation CJ4 at 1.3 : 1.
What each landing and pressurization cycle costs the structure: landings per hour and short hops.
Hours per landing
Where the two fleets sitSide by side
Every active aircraft of each type in North America: 527 Citation CJ3s and 325 Citation CJ4s.| Measure | Citation CJ3 median | Middle half | Citation CJ4 median | Middle half |
|---|---|---|---|---|
| Hours per landing Each aircraft’s average flight hours per landing | 1.4 : 1 | 1.2–1.6 : 1 | 1.3 : 1 | 1.1–1.6 : 1 |
| Short hops Share of legs under 300 nm | 42% | 34–55% | 42% | 30–54% |
| Leg length Median leg | 360 nm | 274–441 nm | 366 nm | 258–511 nm |
Corrosion
On salt air, the types sit further apart than the middle half of either fleet spans: the middle Citation CJ3 at 1%, the middle Citation CJ4 at 0%.
What the air around the fleet does overnight: salt, damp and freeze–thaw.
Salt air
Where the two fleets sitSide by side
Aircraft we can place on enough nights at known fields: 327 Citation CJ3s and 187 Citation CJ4s.| Measure | Citation CJ3 median | Middle half | Citation CJ4 median | Middle half |
|---|---|---|---|---|
| Salt air Nights within 2 km of the coast | 1% | 0–4% | 0% | 0–1% |
| Near the coast Nights within 10 km of the coast | 7% | 1–26% | 3% | 0–10% |
| Damp air Hours a day at 80% humidity or more, above freezing | 6.6 h | 5.0–8.7 h | 5.9 h | 3.7–8.3 h |
| Freeze–thaw Nights that froze and thawed within the day | 8% | 2–18% | 8% | 2–19% |
| Moisture in the air Average absolute humidity overnight | 8.9 g/m³ | 7.2–10.9 g/m³ | 9.0 g/m³ | 6.7–11.2 g/m³ |
Engines and brakes
On short runways, the gap between the types is smaller than the spread inside either fleet: the middle Citation CJ4 at 2%, the middle Citation CJ3 at 1%.
What departures ask of engines, brakes and tires: heat and height, and runway length.
Short runways
Where the two fleets sitSide by side
Departures we could assess: 527 Citation CJ3s and 324 Citation CJ4s.| Measure | Citation CJ3 median | Middle half | Citation CJ4 median | Middle half |
|---|---|---|---|---|
| Short runways Departures where the longest runway was under 1.25× the takeoff distance | 1% | 0–2% | 2% | 0–4% |
| Hot, high takeoffs Departures at 5,000 ft density altitude or more | 6% | 2–12% | 4% | 1–12% |
| Density altitude Typical density altitude at takeoff | 1,664 ft | 1,398–2,169 ft | 1,888 ft | 1,468–2,456 ft |
Utilization
On flights a month, the gap between the types is smaller than the spread inside either fleet: the middle Citation CJ3 at 9, the middle Citation CJ4 at 6.
How steadily each fleet is used: flights, flying days and estimated hours.
Flights a month
Where the two fleets sitSide by side
Citation CJ3s with at least 40% of their flights tracked (293) and every active Citation CJ4 (325). Each type uses the tracking rule its own fleet page uses.| Measure | Citation CJ3 median | Middle half | Citation CJ4 median | Middle half |
|---|---|---|---|---|
| Flights a month In the months it flew | 9.0 | 4.8–20.3 | 5.6 | 4.1–8.4 |
| Days flown a month Days with at least one flight | 6.0 | 3.6–11.8 | 4.1 | 3.0–5.9 |
| Estimated hours a year From time in the air | ≈148 h | 90–315 h | ≈92 h | 62–135 h |
Choosing between a Citation CJ3 and a Citation CJ4?
Check both tails, not the types.
Enter the two tails on your shortlist. TailCheck grades each one on Fatigue, Corrosion, Engines and brakes, and Utilization against its own type, then puts them side by side.
Trip-length mix
Both fleets flew 44% of their legs under 300 nm; 12% of Citation CJ3 legs and 14% of Citation CJ4 legs were over 900 nm.
| Leg length (nm) | Citation CJ3 | Citation CJ4 |
|---|---|---|
| <150 | 21% | 23% |
| 150–300 | 23% | 21% |
| 300–450 | 17% | 14% |
| 450–600 | 12% | 12% |
| 600–900 | 16% | 16% |
| 900–1,200 | 9% | 10% |
| 1,200–1,800 | 3% | 4% |
| 1,800+ | 0% | 0% |
Share of legs by length in nautical miles, 1 Aug 2025 – 31 Jul 2026: 57,504 legs by 527 Citation CJ3s and 24,446 legs by 325 Citation CJ4s, every leg with a known distance. The Citation CJ3's trips bunch at 150–300 nm, the Citation CJ4's at <150 nm.
Citation CJ3 vs Citation CJ4: on paper
Certified figures come from each type certificate data sheet, the rest from the manufacturer. Each figure names its source; a range covers the variants one page tracks together; a dash means we don’t have a source for that figure yet.
| Measure | Citation CJ3 | Citation CJ4 |
|---|---|---|
| Range (manufacturer) | 2,040 nmManufacturer (spec page, Web page, captured 29 Nov 2020) | 2,165 nmManufacturer (spec page, Web page, captured 29 Nov 2020) |
| High-speed cruise (manufacturer) | 416 ktManufacturer (spec page, Web page, captured 29 Nov 2020) | 451 ktManufacturer (spec page, Web page, captured 29 Nov 2020) |
| Takeoff distance (manufacturer) | 3,180 ftManufacturer (spec page, Web page, captured 29 Nov 2020) | 3,410 ftManufacturer (spec page, Web page, captured 29 Nov 2020) |
| Cabin length (manufacturer) | 15 ft 8 inManufacturer (spec page, Web page, captured 29 Nov 2020) | 17 ft 4 inManufacturer (spec page, Web page, captured 29 Nov 2020) |
| Maximum takeoff weight (certified) | 13,870 lbEASA TCDS EASA.IM.A.078 Issue 19, p.36 | 17,110 lbEASA TCDS EASA.IM.A.078 Issue 19, p.46 |
| Fuel capacity (certified) | 4,710 lbEASA TCDS EASA.IM.A.078 Issue 19, p.34 | 5,828 lbEASA TCDS EASA.IM.A.078 Issue 19, p.44 |
| Maximum operating altitude (certified) | 45,000 ftEASA TCDS EASA.IM.A.078 Issue 19, p.36 | 45,000 ftEASA TCDS EASA.IM.A.078 Issue 19, p.45 |
| Passenger seats (certified) | Up to 8EASA TCDS EASA.IM.A.078 Issue 19, p.38 | Up to 9EASA TCDS EASA.IM.A.078 Issue 19, p.47 |
Citation CJ3 vs Citation CJ4: questions
Which is flown more, the Citation CJ3 or the Citation CJ4?
The Citation CJ3, by about 56 estimated hours a year: the middle Citation CJ3 flew ≈148 h a year, the middle Citation CJ4 ≈92 h. That is a fleet median: the middle half of Citation CJ3s logged 90–315 h and of Citation CJ4s 62–135 h, so one aircraft can sit far from its type. In flights, the medians are 9 a month for the Citation CJ3 and 6 for the Citation CJ4.
Which lands more often for its hours, the Citation CJ3 or the Citation CJ4?
The Citation CJ4: its middle aircraft flies 1.3 hours per landing, against 1.4 for the Citation CJ3, 0.1 hours fewer per landing. More landings per hour means more pressurization cycles for the same time in the air. Short hops, legs under 300 nm, make up 42% of the middle Citation CJ3's legs and 42% of the middle Citation CJ4's.
Which flies longer trips, the Citation CJ3 or the Citation CJ4?
The Citation CJ4, by 6 nm on the median leg: 366 nm for the middle aircraft, against 360 nm for the Citation CJ3. Both fleets flew 44% of their legs under 300 nm; 12% of Citation CJ3 legs and 14% of Citation CJ4 legs were over 900 nm.
Which spends more nights by the sea, the Citation CJ3 or the Citation CJ4?
The Citation CJ3, by 1 percentage point: its middle aircraft spends 1% of its nights within 2 km of the coast, the middle Citation CJ4 0%. Salt air is one of the corrosion inputs a TailCheck report grades for one aircraft against its own type.
Which has the longer range on paper, the Citation CJ3 or the Citation CJ4?
The manufacturers quote 2,040 nm for the Citation CJ3 and 2,165 nm for the Citation CJ4. Those are book figures at stated conditions; how far the fleets actually fly is in the trip-length mix above.
Cite this data
The Aircraft Ledger. “Cessna Citation CJ3 vs Cessna Citation CJ4.” Data to 31 July 2026. theaircraftledger.com/compare/cessna-citation-cj3-vs-cessna-citation-cj4
Embed a chart
<iframe src="https://theaircraftledger.com/embed/compare/cessna-citation-cj3-vs-cessna-citation-cj4/fatigue" title="Fatigue: Hours per landing" width="100%" height="360" style="border:0;max-width:960px" loading="lazy"></iframe>Method: Citation CJ3s and Citation CJ4s with most departures in North America, ADS-B tracking. Flight measures cover 1 Aug 2025 – 31 Jul 2026; each figure is the median of its own fleet, with the middle half (25th–75th percentile). Estimated hours from time in the air. We assume the longest runway at each field, so short-runway figures are conservative. Specifications from type certificate data sheets and the manufacturers, each cited. About our data