Aircraft comparison
Bombardier Learjet 45 vs Cessna Citation CJ4 Gen2
Summary
The Bombardier Learjet 45 and the Cessna Citation CJ4 Gen2 are two light jets, compared here on the specifications that matter. On the numbers, the Cessna Citation CJ4 Gen2 flies farther (2,165 vs 1,710 nm); the Cessna Citation CJ4 Gen2 carries more (10 vs 9 pax); the Bombardier Learjet 45 is faster (464 vs 451 kt). Across 1038 benchmark city pairs in this database, the Cessna Citation CJ4 Gen2 reaches more nonstop (298 versus 264). On a route like Naples – Carlsbad (1,890 nm), only the Cessna Citation CJ4 Gen2 makes it nonstop (estimated from published range).
Key differences
Range
455nm
21.0% · Citation CJ4 Gen2 ahead
Cruise speed
13kt
2.8% · Learjet 45 ahead
Cabin height
0.1ft
2.0% · Learjet 45 ahead
Max passengers
1
10.0% · Citation CJ4 Gen2 ahead
Nonstop reach
264 / 298
of 1038 benchmark routes
| Specification | Learjet 45 | Citation CJ4 Gen2 |
|---|---|---|
| Range | 1,710 nm (3,166.9 km) | 2,165 nm (4,009.6 km)✓ |
| Max cruise speed | 464 kt (859.3 km/h)✓ | 451 kt (835.3 km/h) |
| Max operating altitude | 51,000 ft (15,544.8 m)✓ | 45,000 ft (13,716 m) |
| Max takeoff weight | 21,500 lb (9,752.2 kg) | 17,110 lb (7,761 kg) |
| Typical passengers | 7 count | 7 count |
| Max passengers | 9 count | 10 count✓ |
| Cabin height | 4.9 ft (1.49 m)✓ | 4.8 ft (1.46 m) |
| Cabin width | 5.1 ft (1.55 m)✓ | 4.8 ft (1.46 m) |
| Baggage volume | 50 cuft (1.42 m3) | 77 cuft (2.18 m3)✓ |
| Powerplant | Honeywell TFE731-20 | Williams FJ44-4A |
| Engines | 2 count | 2 count |
| Thrust per engine | 3,500 lbf | 3,621 lbf |
Highlighted cells mark the stronger value per row (direction is per-metric). Route capability is estimated from published range; figures are not booking prices.
On a real route
Naples – Carlsbad — 1,890 nm. Only the Cessna Citation CJ4 Gen2 makes this nonstop (estimate).
See the route →