Aircraft Lease Cost Calculator
Estimate the monthly cost of leasing an aircraft from its purchase value, lease term, residual value, and interest rate. Useful for early-stage fleet decisions before talking to a lessor for binding quotes.
Last updated: May 2026
Compare with similar
About this calculator
Aircraft leasing breaks the monthly payment into two components: a depreciation charge that covers the value the aircraft is expected to lose during the lease, and a financing charge that compensates the lessor for the capital tied up in the asset. This calculator uses monthly_payment = (aircraftValue * (1 - residualValue / 100)) / leaseTerm + (aircraftValue * interestRate / 100) / 12. The first term spreads the non-recovered value (aircraft cost minus the residual the lessor expects to recover at lease-end) over the lease months; the second is a simplified monthly interest charge on the full aircraft value. Typical residual values vary by aircraft type and age: 40 to 55 percent for narrowbody airliners over a 6 to 12 year lease, 30 to 45 percent for widebodies, 50 to 65 percent for popular business jets (Gulfstream, Bombardier, Embraer), and 20 to 35 percent for regional jets at end-of-life. Edge cases and limitations: this formula does not capture maintenance reserves (often US$500 to US$3,000 per flight hour set aside in escrow), insurance (1.5 to 4 percent of hull value per year), operational costs (fuel, crew, navigation fees), or the difference between dry leases (aircraft only) and wet leases (with crew, maintenance, insurance bundled). Real lease term sheets also include security deposits (typically 3 to 6 months of rent), maintenance return conditions, and end-of-lease compensation that can move effective monthly cost by 20 to 40 percent. The lease type multiplier (operating, finance, full-service) in the input list is informational only and not multiplied into the formula here.
How to use
Example 1: A USD 8.5M business jet on a 72-month lease, 45 percent residual value, 5.5 percent interest rate. Compute depreciation portion: (8,500,000 * (1 - 0.45)) / 72 = 4,675,000 / 72 = USD 64,930 per month. Compute interest portion: (8,500,000 * 0.055) / 12 = 467,500 / 12 = USD 38,958 per month. Total monthly payment: USD 103,889. Verify: over 72 months total payments are USD 7.48M, plus a USD 3.83M residual recovery means lessor recovers USD 11.31M against an USD 8.5M cost; the surplus reflects interest income over the lease life. Example 2: A USD 25M narrowbody airliner on a 144-month (12-year) lease, 40 percent residual, 4.5 percent rate. Depreciation: (25,000,000 * 0.60) / 144 = USD 104,167 per month. Interest: (25,000,000 * 0.045) / 12 = USD 93,750 per month. Total: USD 197,917. Verify against industry rates: a 2018-build A320neo on a 12-year operating lease typically prices around USD 200,000 to 280,000 per month, consistent with this estimate before the maintenance reserves and crew costs that a wet lease would add.
Frequently asked questions
What is the difference between an operating lease, a finance lease, and a wet lease?
An operating lease (also called a dry lease) is a short-to-medium-term rental of the bare aircraft, typically 5 to 12 years, where the lessor retains the residual value risk and the lessee handles all operations: crew, maintenance, fuel, insurance, and registration. A finance lease (or capital lease) is structured more like a purchase financed over time; the lessee assumes the residual value risk, the asset shows on the lessee's balance sheet, and the lease term is closer to the aircraft's economic life. A wet lease (also called ACMI: aircraft, crew, maintenance, insurance) bundles the aircraft with a full operating package and is used for short-term capacity needs, typically 1 to 24 months, with the lessor's crew operating under the lessee's commercial brand. Wet leases cost 30 to 60 percent more per month than dry leases because of the bundled services and higher operating risk. This calculator estimates a dry-lease style payment; for wet leases multiply by roughly 1.3 to 1.6 and add per-hour charges.
Why do real-world aircraft lease quotes differ so much from this calculator?
This calculator captures only the basic finance arithmetic; real lease deals include several layers of cost not modeled here. Maintenance reserves are the biggest hidden item: lessors require escrow contributions of USD 200 to USD 3,000 per flight hour on widebody and turbine aircraft to fund future heavy maintenance, which can double the effective monthly cost on aircraft that fly more than a few hundred hours per month. Hull insurance adds 1.5 to 4 percent of aircraft value per year. Operational expenses (fuel, crew, navigation, handling, depreciation of unrecovered residual value) add 60 to 75 percent of total operating cost on top of the lease. End-of-lease return conditions specify the maintenance state the aircraft must be returned in; failing those triggers compensation payments that can run into millions. Security deposits typically equal 3 to 6 months of rent. The headline 'monthly lease payment' from a calculator is usually 40 to 60 percent of true cash outflow.
How do residual values change with aircraft type, age, and market conditions?
Residual value forecasting is a specialist discipline because aircraft hold value very differently across types and market cycles. Popular narrowbody airliners with deep operator markets (A320 family, 737-800/MAX) typically hold 45 to 55 percent of new value at the 12-year mark; older widebodies (777-200ER, A340-300) often fall below 25 percent at 15 years because the operator base shrinks. Business jets generally hold value better in nominal terms because the user base is wealthier and less cyclical, but specific types (older Cessna Citations, certain Hawkers) have depreciated faster than projected. Market disruptions move residual values 15 to 30 percent within months: COVID-era widebody values fell roughly 30 to 40 percent, while freighter conversions of those same aircraft created upside surprises. Macroeconomic factors (jet fuel price, interest rates, airline route economics) and engine reliability programs (PIPs, the JT8D era to the LEAP era) also influence residuals. Trust ISTAT-appraised values from independent appraisers (Avitas, Cirium Ascend, ICF) rather than manufacturer or broker statements for serious decisions.
When should I NOT use this calculator?
Do not use this calculator for binding commercial decisions, accounting treatment, or finance modeling of a real lease deal; for those tasks you need term-sheet specifics, full cash-flow projection, and tax treatment that vary by jurisdiction and corporate structure. Do not use it for wet leases (ACMI), which include operating components priced by flight hour, not lease principle. Do not use it for purchase-leaseback transactions, sale-leasebacks, or PDP (pre-delivery payment) financing where the cash-flow structure is fundamentally different. Do not use it as a substitute for an ISTAT-appraised residual value forecast; quoted percentage residuals from manufacturers or marketing materials are often optimistic. Do not use it for emerging aircraft types (new-technology narrowbodies just entering service, electric or hydrogen prototypes) where residual values cannot be reliably forecast. Engage a structured-finance advisor or specialist aviation finance bank for any decision above USD 5M.
What is the most common mistake when estimating aircraft lease costs?
The most common mistake is confusing the lease payment with the total cost of operating the aircraft. The lease payment itself typically represents only 15 to 25 percent of the all-in cost per flight hour or per block hour; fuel adds 35 to 50 percent, crew 8 to 15 percent, maintenance reserves 10 to 25 percent, and the remainder is insurance, navigation, handling, and administrative overhead. A 'cheap' lease is meaningless if the type is fuel-inefficient or has expensive maintenance. The second most common mistake is using book residual values (manufacturer-published or marketing-publication numbers) rather than independent appraised values, which can differ by 10 to 20 percent and produce wildly different monthly economics. Third is failing to add maintenance reserve cash outflows, which are often the largest single item on a turbine aircraft lease invoice. Always model gross cash flow per month including all reserves and fees, not just the principal-and-interest portion this calculator shows.