King Air C90
Introduction: Your King Air C90 Buyer’s Guide
This guide is designed for professionals and businesses considering the acquisition of a Beechcraft King Air C90. It provides essential information to support you throughout your purchasing process.
You will find detailed analyses of the model’s history, the current new and pre-owned market, and price trends. We also cover operating costs and key factors impacting your decision. For a more complete picture, expert and owner reviews will enrich your perspective.
Prepare to make an informed decision with a comprehensive overview of the financial, operational, and performance aspects specific to the King Air C90. By understanding these elements, you will be able to assess whether this aircraft meets your needs.
The following sections explore the specifics of this twin-engine turboprop in detail, starting with its history and evolution.
Market & Budget: King Air C90
What is the price of a new or pre-owned King Air C90?
The King Air C90 is no longer in production. The market is therefore exclusively focused on pre-owned aircraft. The acquisition price is strongly influenced by the year of manufacture, flight hours, overall condition, and maintenance history.
A 1980 King Air C90, well-maintained but with original avionics and interior, can be negotiated around $500,000. A more recent model from the 2000s, with upgraded avionics and refurbished interior, can reach $1.5 million or more.
What is the current availability of the King Air C90?
Availability of the King Air C90 on the pre-owned market is generally good, owing to the large number produced. However, aircraft in excellent condition with low-time engines and up-to-date avionics are rarer and sell quickly. It is advisable to consult specialized platforms and aviation brokers for an accurate overview of available inventory.
What are the average transaction timelines?
The average timeline for acquiring a pre-owned King Air C90 is typically between 4 and 12 weeks. This process includes negotiation, comprehensive pre-purchase inspection (PPI), administrative procedures, and title transfer. For selling, the timeline is often longer, from 3 to 6 months.
What is the estimated residual value of the King Air C90?
The residual value of a King Air C90 depends on many factors such as year of manufacture, flight hours, maintenance history, and overall condition. In 2025, the residual value for a typical pre-owned C90 ranges between $700,000 and $850,000 USD.
For example, a well-maintained 15-year-old King Air C90 with a complete maintenance history and regular avionics upgrades will retain strong residual value. Conversely, an older aircraft showing significant wear, pending maintenance costs, and obsolete avionics will see its value decrease.
What initial budget should you plan for?
The initial budget for acquiring a King Air C90 varies considerably. You must include the aircraft purchase price, as well as essential ancillary costs.
| Expense Item | Estimate (USD) |
|---|
| Aircraft purchase price | $500,000 - $1,500,000 |
| Pre-purchase inspection (PPI) | $10,000 - $30,000 |
| Legal & notary fees | $5,000 - $15,000 |
| Initial insurance | $15,000 - $30,000 |
| Ferry flight costs | $2,000 - $10,000 |
| Total initial budget | $532,000 - $1,585,000 |
This budget covers acquisition and the first steps before entering service. Annual operating costs are not included in this estimate.
King Air C90 Operating Costs
What are the main categories of annual expenses?
Operating costs are divided into fixed and variable expenses. Fixed costs include crew, insurance, hangar, and training. Variable costs are tied to aircraft usage: fuel, scheduled and unscheduled maintenance, and airport fees.
What are the annual fixed costs?
Fixed costs are incurred regardless of the number of flight hours. For a King Air C90, crew (a professional pilot is often required) represents a significant share. Insurance varies depending on pilot experience and area of operation. Hangar costs depend on location and included services.
- Crew (pilot): Approximately 80,000 to 150,000 USD. Source: JetNet
- Insurance: Between 15,000 and 30,000 USD. Source: AOPA
- Hangar: From 10,000 to 30,000 USD. Source: Globalair
- Recurrent training: Between 5,000 and 15,000 USD/year. Source: FlightSafety International
What are the variable costs per flight hour?
Variable costs are directly proportional to aircraft usage. Fuel is the largest expense. Hourly maintenance reserves cover engine and airframe overhauls. Landing and navigation fees depend on the airports visited and routes flown.
- Fuel (Jet A): Approximately 400 to 600 liters/hour, i.e., 400 to 900 USD/hour (at $1.5-2 USD/liter). Source: AirNav
- Maintenance (hourly reserves): From 200 to 400 USD/hour, including engines and airframe. Source: Conklin & de Decker
- Fees and miscellaneous: Approximately 50 to 150 USD/hour. Source: FAA
What are the major maintenance milestones?
The King Air C90 follows a rigorous maintenance program, essential for both safety and aircraft value. Inspections are based on calendar time or flight hours.
- Periodic inspections:
- Phase 1 and 2: Every 200 hours or 12 months.
- Phase 3 and 4: Every 400 hours or 24 months.
- These phases are typically alternated.
- Major engine overhaul (TBO - Time Between Overhaul): Every 3,600 hours for the Pratt & Whitney PT6A engines.
- Structural inspection (D-Checks): Less frequent but more thorough, depending on aircraft age.
Sources: Beechcraft King Air Maintenance Manual, Pratt & Whitney Canada
How do operating costs vary by annual usage?
The table below estimates total annual costs for different usage levels, based on average fixed and variable costs. These figures are estimates and may vary.
| Cost Items | 150 hours/year | 300 hours/year | 500 hours/year |
|---|
| Fixed costs | | | |
| Crew (USD) | 100,000 | 100,000 | 100,000 |
| Insurance (USD) | 20,000 | 20,000 | 20,000 |
| Hangar (USD) | 20,000 | 20,000 | 20,000 |
| Training (USD) | 10,000 | 10,000 | 10,000 |
| Variable costs | | | |
| Fuel (USD) | 97,500 | 195,000 | 325,000 |
| Maintenance (USD) | 45,000 | 90,000 | 150,000 |
| Fees (USD) | 15,000 | 30,000 | 50,000 |
| Annual total (USD) | 307,500 | 465,000 | 675,000 |
Assumptions: Fuel at 650 USD/hour, maintenance at 300 USD/hour, fees at 100 USD/hour.

Buy or Charter a King Air C90: Cost-Usage Analysis
The decision to buy or charter a King Air C90 depends primarily on expected usage intensity and budget considerations. Purchasing involves high upfront costs and significant fixed operating charges, while chartering offers flexibility with variable costs tied to usage.
What is the purchase cost of a King Air C90?
A pre-owned King Air C90 typically sells between $700,000 and $2,000,000. Older models (1970s-1980s) generally range from $700,000 to $1,300,000. More recent or better-equipped versions (post-1990) can reach $1,300,000 to $2,100,000. Prices vary depending on the year of manufacture, flight hours, overall condition, and upgrades. The average residual value of a King Air C90 is estimated at approximately $700,000. (Source: aircraft24.fr)
What are the hourly operating and charter costs?
The variable hourly operating cost for a King Air C90 is approximately $1,800 to $1,900 USD/hour. This includes fuel, direct maintenance, and consumables. When factoring in fixed costs (insurance, hangar, crew, etc.), the total hourly cost can reach $2,200 to $2,700 USD/hour for typical annual usage.
Charter costs vary. In Europe, some operators offer rates starting at €375/hour. Internationally, rates are typically in the range of $1,400 to $1,750 USD/hour for a King Air C90 or C90GTx. These prices often include crew and insurance. (Source: openfly.fr, paramountbusinessjets.com)
Cost comparison across different usage scenarios
For a comparative analysis, we use the following assumptions:
- Average purchase price: €1,300,000 (approximately $1,400,000) for a pre-owned model in good overall condition.
- Annual fixed operating costs (excluding fuel and hourly maintenance): $350,000 (including insurance, hangar, crew salaries, management fees).
- Variable hourly operating cost (fuel, progressive maintenance): $1,800 USD/hour.
- Hourly charter cost: $1,600 USD/hour.
- Purchase depreciation: Accounting for residual value loss over 5 years (average residual value of $700,000).
| Scenario | Acquisition Type | Initial Cost | Annual Fixed Costs | Annual Variable Costs | Total Annual Cost | Total Cost over 5 Years | Cost/Hour (5 Years) |
|---|
| 150 h/yr | Purchase | $1,400,000 | $350,000 | $270,000 ($1,800/h) | $620,000 | $3,100,000 | $4,133 |
| Charter | $0 | $0 | $240,000 ($1,600/h) | $240,000 | $1,200,000 | $1,600 |
| 300 h/yr | Purchase | $1,400,000 | $350,000 | $540,000 ($1,800/h) | $890,000 | $4,450,000 | $2,967 |
| Charter | $0 | $0 | $480,000 ($1,600/h) | $480,000 | $2,400,000 | $1,600 |
| 500 h/yr | Purchase | $1,400,000 | $350,000 | $900,000 ($1,800/h) | $1,250,000 | $6,250,000 | $2,500 |
| Charter | $0 | $0 | $800,000 ($1,600/h) | $800,000 | $4,000,000 | $1,600 |
Note: The 5-year total cost for purchase includes depreciation of the initial purchase price (loss of the $700,000 residual value over the period, i.e., $140,000/year in addition to operating costs).
Trend Analysis
Chartering is significantly more advantageous for low annual flight hour volumes (under 200-250 hours/year). Beyond that threshold, purchasing becomes progressively more competitive, although the cost of ownership remains high. For intensive use (over 500 hours/year), purchasing provides better hourly cost control, despite the heavy initial investment and significant fixed expenses. It is essential to factor in potential tax benefits from depreciation and the flexibility constraints of each option.
Learn more about chartering a King Air C90
Where to Buy a King Air C90?
Acquiring a pre-owned King Air C90 primarily involves specialized platforms and aviation brokers. These channels offer a wide range of options and services.
What are the main online platforms?
The following table lists the major platforms, their web addresses, and the type of listings typically available.
| Platform Name | URL | Listing Type |
|---|
| Aircraft24 | aircraft24.fr | Detailed listings |
| AvBuyer | avbuyer.com | Active listings / Market prices |
| AircraftExchange | aircraftexchange.com | Listings by IADA brokers |
These platforms allow you to filter searches by year, flight hours, or location. Prices generally range from 1.2 to 2 million USD depending on the year and condition.
Online platforms provide access to a large inventory of King Air C90 listings. They are ideal for initial market exploration and quick comparisons of available aircraft.
Specialized brokers, such as evoJets, offer personalized support. They can access “off-market” deals not visible on public platforms. Their expertise facilitates negotiations and secures the transaction.

King Air C90 Owner Reviews
What does experience tell us?
“It’s an incredibly reliable aircraft. We’ve been using it for regional business flights for nearly 10 years, and it starts up every time without fail. Maintenance costs are reasonable for its category, and its ability to land on shorter runways is a major advantage.”
— David, business pilot, Florida, USA.
“The C90 is a good aircraft overall, but you need to be aware of its limitations. In hot weather and at altitude, performance can be a bit marginal, requiring careful planning. Additionally, while comfort is good for its size, cabin space can feel tight on longer trips with multiple passengers.”
— Sophie, owner-operator, Alberta, Canada.
Discover more King Air C90 reviews
Conclusion: Take Action on Your King Air C90
Acquiring a King Air C90 represents a strategic investment that requires thorough preparation. This twin-engine turboprop offers proven performance and valued versatility. To bring your project to fruition, a proactive approach is essential.
What are the next concrete steps?
We recommend consulting experts for a precise evaluation. Contact specialized business aviation brokers for detailed cost estimates. They can also guide you through financing options and the legal aspects of the acquisition.
Where to find additional resources?
Platforms like Controller.com and Trade-a-Plane (Controller.com, Trade-a-Plane) offer lists of available aircraft. Visit these sites to refine your search and compare listings. Analyzing recent market data is crucial for an informed transaction.

Frequently Asked Questions for Buyers
What acquisition costs should you expect?
The price of a pre-owned King Air C90 (1985-2005 models) ranges from 1.17 to 2.05 million dollars. A more recent C90GTx (2016-2020) falls between 3.45 and 4 million dollars. These amounts depend on the year, condition, and equipment.
How to finance a King Air C90 purchase?
Various financing options exist: specialized bank loans, leasing, or outright purchase. Rates and terms vary depending on the financial institution and the buyer’s profile. A personalized study is recommended.
What are the registration specifics?
Registering a C90 follows national regulations (e.g., EASA in Europe, FAA in the United States). You should plan for administrative procedures, registration fees, and ensuring compliance with current standards for the certificate of airworthiness.
What are the annual management costs?
Annual operating costs for a C90, including fuel, maintenance, insurance, and other charges, can reach approximately 1.17 million dollars for 450 flight hours per year. The total hourly cost is estimated at $2,600.
Are there technical pitfalls to avoid when buying?
A thorough pre-purchase inspection by an independent expert is crucial. Verify the complete maintenance history, engine cycles, compliance with maintenance programs, and avionics condition to avoid costly surprises.
What specific regulations apply?
The King Air C90 is subject to general and business aviation regulations. These include certification standards, maintenance requirements, pilot training mandates, and airspace restrictions, which vary by country of operation.