Piper M600 vs Beechcraft King Air 90

The Piper M600 (single-engine turboprop, ~274 kt, Garmin G3000) and Beechcraft King Air 90 (twin-engine turboprop, ~250 kt) are different-propulsion turboprops — single vs twin.

Live Market Snapshot

Current asking-price market, aggregated across multiple marketplaces · refreshed daily

Piper M600
For sale now
27
Median asking
$2,939,000
Range
$2,339,500–$3,832,056
Listed on 2+ marketplaces
15
Source marketplaces
7
Model years available
2016–2026
Beechcraft King Air 90
For sale now
116
Median asking
$1,172,500
Range
$413,000–$3,117,025
Listed on 2+ marketplaces
50
Source marketplaces
15
Model years available
1965–2014

Live data from AeroGurus, aggregated daily across the used-aircraft market. Figures are current asking prices, not appraisals — confirm with a pre-buy inspection.

Full Specs Comparison

Swipe to see all specs
Spec / Model Piper M600 Beechcraft King Air 90
Piper M600
View 27 listings →
Median $2,939,000
 Beechcraft King Air 90
View 108 listings →
Median $1,172,500
Price Range $2,339,500 – $3,832,056 $413,000 – $3,117,025
Category Single Engine Turboprop Multi Engine Turboprop
Model Specifications
Seats 6 10
Cruise Speed 260 kts (482 km/h) 215 kts (398 km/h)
Range 1,484 nm (2,748 km) 1,060 nm (1,963 km)
Service Ceiling 30,000 ft (9,144 m) —
Max Gross Weight 6,000 lbs (2,722 kg) —
Useful Load 1,822 lbs (826 kg) 2,700 lbs (1,225 kg)
Fuel Capacity 260.0 gal (984 L) —
Fuel Burn 40.0 GPH (151 L/h) —
TBO 3,500 hrs 3,600 hrs
Overhaul Cost $350,000 —
Annual Fixed $120,000 —
Hourly Variable $750 —
Engines 1 x Turboprop 2 x Turboprop

Cost of Ownership

Estimate

Piper M600

Fuel$220/hr
Variable$750/hr
Annual Fixed$120,000/yr
Total (200 hrs/yr) $270,000/yr

Beechcraft King Air 90

Which Should You Buy: Piper M600 or Beechcraft King Air 90?

Bottom line: Choose the M600 for the modern Garmin G3000 cockpit, single-engine economics and higher cruise. Step up to the King Air 90 only when twin-engine redundancy and the larger King Air cabin matter more than the M600's efficiency and modern systems.

Pick the M600 if…

  • Faster cruise — 260 kts vs 215 kts.
  • Longer range — 1484 nm vs 1060 nm.
  • Newer design — production from 2016 vs 1966.

Pick the King Air 90 if…

  • Budget matters — from $413,000 vs $2,339,500, you save ~$1,926,500.
  • More seats — 10 vs 6.
  • More inventory — 108 listings vs 27.

Auto-generated from current market data and published specs. Confirm with a pre-buy inspection and professional appraisal.

Frequently Asked Questions

Which is better, Piper M600 or Beechcraft King Air 90?
It depends on your mission and budget. The M600 cruises at 260 kts with 1,484 nm range. The King Air 90 cruises at 215 kts with 1,060 nm range. Review the specs table above to find which fits your flying profile.
How do prices compare?
Beechcraft King Air 90: from $459,000. Prices vary by year, hours, avionics, and condition. Always get a pre-buy inspection.
What's the difference between Piper M600 and Beechcraft King Air 90?
King Air 90 engine: Pratt & Whitney PT6A-6. Seats: 6 vs 10. Cruise: 260 vs 215 kts. Range: 1484 vs 1060 nm.
Which is cheaper to operate per hour?
M600: about $750/hr variable cost. Variable cost includes fuel, reserves and overhaul accruals. Annual fixed costs (hangar, insurance, annual inspection) add to the total.
Which has more seats and useful load?
M600: 6 seats / 1,822 lb useful load. King Air 90: 10 seats / 2,700 lb useful load. Useful load = max gross weight minus empty weight; it determines how much fuel plus payload you can carry.
How does maintenance compare — TBO and overhaul cost?
M600: 3,500-hour TBO, overhaul ~$350,000. King Air 90: 3,600-hour TBO. Reaching the time-between-overhaul (TBO) triggers a mandatory engine/airframe rebuild that affects resale value.
Disclaimer: All prices and cost estimates are from third-party sources for informational purposes only. Always obtain professional appraisal and inspection before purchase.
Prices updated daily · Data: FAA Registry, NTSB · About our data