Aircraft Ownership Cost Calculator (Fixed + Variable Cost per Flight Hour, Engine Reserve, Own vs Rent)
Work out what owning a light aircraft costs per flight hour: fixed costs (hangar, insurance, annual inspection, loan interest, depreciation, subscriptions) spread over your hours, plus variable costs (fuel, oil, engine and prop overhaul reserves, maintenance per hour), with the break-even against renting and partnership shares.
How it works
fixed/yr = hangar × 12 + insurance + annual + subscriptions + price × rate (interest or opportunity) + price × depreciation % · variable/h = gph × fuel price + overhaul ÷ TBO + maintenance/h · cost/h = fixed ÷ partners ÷ hours + variable · break-even vs rent = (fixed ÷ partners) ÷ (rental rate − variable/h)
Aircraft costs split cleanly into what you pay whether or not you fly — hangar, insurance, the annual inspection, the money tied up and depreciation — and what each hour burns: fuel, an engine reserve toward the overhaul, and maintenance. Fixed costs dominate for owners who fly little, which is why the per-hour cost falls steeply with utilisation and why partnerships are popular. Comparing that figure with the rental rate for the same type gives the number of hours a year at which owning pays.
Worked example
A $120,000 four-seat single flown 100 hours a year: fixed costs of about $22,200 (hangar $4,800, insurance $2,200, annual $3,500, subscriptions $900, $8,400 of opportunity cost at 7% and $2,400 of depreciation) are $222 an hour, plus $103.50 variable ($58.50 fuel, $20 engine reserve, $25 maintenance) — about $326 an hour, well above a $190 rental. Break-even is about 257 hours a year; in a 3-way partnership the cost falls to about $178 an hour.
Frequently asked questions
How much does it cost to own a small plane per hour?
Typically $150–350 an hour for a four-seat piston single, all-in, at 100 hours a year; the fixed part (hangar, insurance, annual, capital) is usually half or more. At 50 hours a year the per-hour cost can be double; at 200 it drops sharply.
What is an engine reserve?
Money set aside each hour toward the overhaul due at TBO: overhaul cost ÷ TBO hours, e.g. $40,000 ÷ 2,000 h = $20/h. Owners who skip it face a five-figure bill at once; buyers also price aircraft by time since overhaul.
When does owning beat renting?
Usually somewhere between 100 and 250 hours a year for a single owner, much lower with partners. Below that renting is cheaper, though owners value availability, equipment and knowing the aircraft's history.
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Estimates from your inputs; not financial advice — insurance, maintenance and market values vary widely by aircraft, pilot and region.