Airline financial model — fleet and network economics

A model is there for the decision: buy this type or the other one, add a second aircraft or build up the hours on the first, open this route or leave it alone. We count the way an operator counts — the operator is the one who pays these bills.

What goes into the model

• cost per flight hour for each type: fuel, maintenance and contributions to reserves, crew, navigation, handling
• fixed costs: parking and hangarage, insurance, staff, licences, administrative support
• fleet and schedule: annual flight hours, utilisation, seasonality, downtime for maintenance
• the route network: demand, rates, competition, repositioning flights between bookings
• financing: leasing or own capital, debt service
• scenarios: base, conservative, stress — each with its own break-even point

What the client gets

The model is built for whoever will read it. An investor cares about returns and risks; a bank or a lessor cares about the resilience of the cash flow; you care about exactly where the business earns and where it leaks.

How we calculate the cost per flight hour

This is the core of the model, and it is where mistakes are made most often: direct costs are taken and reserves are forgotten. An hour in the air uses up life, and if nothing is set aside for heavy work, the handsome economics of the first year turn into a cash gap in the third.

• fuel at the type's actual burn and at contract prices at the bases
• engine and airframe reserves — through programmes or on your own calculation
• line and scheduled maintenance, components
• crew: pay, simulators, ratings and approvals, travel allowances
• navigation, handling, airport charges on typical routes
• insurance, spread over the planned annual flight hours

I have been in aviation for more than twelve years: five in aircraft leasing, seven in business aviation, including a stretch as CEO of an airline built from scratch. Financial models and business plans for aviation businesses are one of the strands of my work as a working operator. When the economics do not add up, I say so plainly and talk the client out of the purchase.

Frequently asked questions

How is a model different from a business plan?

A business plan explains the idea and the market, and it is read once. A model is a working calculation that stays alive after the pitch: you feed in new fuel prices, a changed schedule, a different make-up of the fleet, and you watch what happens to the cash flow. You usually need both documents, and the model comes first — the business plan leans on its figures.

What should I ask the operator so the model matches reality?

Three things: how many hours a year they can genuinely deliver on your type and your schedule, what maintenance downtime is built into their plan, and how repositioning flights between bookings are counted — who pays when the aircraft flies empty. The answers move the result more than the hourly rate does.

Does the model work for a single aircraft?

Yes. The economics of a single aircraft under management follow the same logic — the model is simply shorter. The difference is sensitivity: with one aircraft, unplanned downtime comes straight out of the annual result, and that belongs in the scenarios from the start.

Alexander Filimonov — business aviation: sourcing, acquisition and entry into service of aircraft.