The average business jet is now flown 21.4 hours per tail per month, 10.5% more than in 2019. That figure comes from the JETNET JIQ Market Barometer published on 26 August 2026, and it is the number in this month's data that actually changes an owner's arithmetic. The fleet has not merely recovered to pre-pandemic activity. It has passed it, and it is staying there.
Super midsize aircraft lead the field at 30.8 hours a month. JETNET also records 3.99 million global departures on a trailing twelve month basis to July 2026, up 4.9%, with North America accounting for 71.6% of activity.
Utilisation is the least discussed of the market indicators and the most expensive one. Ownership costs are usually presented as an annual budget, a calendar figure. Aircraft maintenance is not billed on a calendar. It is billed on hours.
What 10.5% More Flying Does to the Logbook
Global business jet utilisation is running above pre-pandemic levels. Maintenance intervals are counted in hours, so a busier fleet reaches every gate sooner.
Hours are the meter, not months
The maintenance schedule of a modern business jet is built around flight hours, and the gates arrive when the hours arrive rather than when the year turns. Duncan Aviation's published intervals for the Honeywell HTF7000 family, the engine on the Challenger 300 and 350 among others, illustrate the point. The engine is maintained on condition, with no mandatory overhaul, but it carries hour-driven inspections throughout its life: oil filter replacement and analysis at 400 and 800 hours, a compressor section borescope at 4,800 hours, and a turbine section borescope at 9,600 hours. None of those intervals is expressed in months. Older powerplants are stricter still. The Pratt and Whitney PW305 series carries a time between overhaul of 5,000 hours with a hot section inspection at the halfway mark of 2,500 hours.
An aircraft flying 10.5% more hours reaches every one of those gates roughly 10% sooner in calendar time. The owner who budgeted a heavy engine event for 2032 on the flying pattern of a few years ago is now looking at it arriving earlier, and the reserve sized against the old assumption is short.
The same logic runs through the airframe, where component life limits, landing gear overhauls and inspection cycles are counted in hours and cycles. Nothing about the aircraft has changed. The rate at which it spends its own life has.
The cost of each hour is rising at the same time
If hours were merely more numerous, the effect would be linear and manageable. They are also more expensive. JSSI, which supports roughly 6,500 aircraft, close to 30% of the global business jet fleet, has been explicit about the environment. Fabrice Roger, its executive vice president for business development in EMEA, described operators as dealing with economic pressure from rising costs for fuel, maintenance and labour, and the company points to inflationary pressure on maintenance costs driven by labour shortages and OEM pricing power.
That combination is what makes this print worth an owner's attention. Hourly cost maintenance programmes, whether an engine programme or an airframe programme, convert unpredictable events into a fixed contribution per flight hour. They are excellent protection against the size of an event and no protection at all against the number of hours. Fly 10% more and the programme bills 10% more, on a rate that is itself under upward pressure. For an owner reading the annual cost of ownership as a fixed and variable split, the variable half is growing on both terms at once.
What a fuller logbook does at resale
The second consequence lands years later, at sale. VREF, the appraisal house, describes total airframe time as the equivalent of an odometer, and notes that accrual never starts over. It also states plainly that the stigma attached to a high time aircraft is very real, particularly in the turbine classes, where a buyer reading a full logbook reasonably infers that major maintenance is closer than the aircraft's age suggests.
The penalty is assessed against the fleet average for the type rather than an absolute threshold, which is precisely why a fleetwide shift matters. At the current global average of 21.4 hours a month, an aircraft accrues about 257 hours a year against roughly 232 at the 2019 rate. Over a decade of ownership that is close to 250 additional hours on the airframe at handover, sitting in the record a buyer's inspector will read line by line.
That matters more than usual right now because residual values have been unusually firm. AVNET reported this month that business jets have been holding their value far better than the traditional depreciation curve predicts, a strength that rests on scarce inventory rather than on the condition of any individual aircraft. Scarcity lifts every aircraft. Hours differentiate between them.
The market backdrop
The rest of the barometer explains why the flying is not slowing. For sale inventory sits at 6.6% of the operational fleet on a trailing twelve month basis, roughly 1,766 aircraft listed in a given month, against an inventory to transaction ratio of 0.63:1. That remains a seller's market by a clear margin.
Transaction velocity, though, has decelerated sharply. Preowned transactions total 2,815 on a trailing twelve month basis, up only 3.7%, against 17.0% for full year 2025. New deliveries are running at 544 units year to date, up 9.2%, with North America taking 86% of them. Combined backlog across the four major airframe manufacturers stands at $61.6 billion, with Gulfstream and Bombardier holding almost 75% of it.
Fewer aircraft are changing hands, new supply is arriving slowly, and the aircraft already in service are absorbing the demand. That is the mechanism behind 21.4 hours a month, and it is unlikely to reverse while the backlog holds.
For owners, the practical response is unglamorous. Track actual hours flown against the assumption the maintenance reserve was built on, rather than against the calendar, confirm what the programme rate covers, and book shop capacity earlier than feels necessary. A fleet arriving at its maintenance gates ahead of schedule is also a fleet competing for the same hangar slots at the same time.