Your hangar, your insurance, your certificate and your permanent staff cost the same whether the aircraft flies eighty hours this month or twenty. That is the whole of the argument, and it is also where it gets misused.
The two costs that matter
Fixed cost runs regardless. Hangar, insurance, certificate upkeep, salaried crew. It does not know whether you flew.
Variable cost only appears when you fly. Fuel, landing and handling fees, hourly maintenance reserves, per-flight crew expenses.
A job that covers variable cost and leaves anything over improves your month, even at a rate below your list price — because the alternative was zero, not your list price.
Where operators get this wrong
They compare against the list rate instead of against nothing. «I don't fly for that» is correct if the aircraft would otherwise have flown a full-price job. It is expensive if the aircraft would otherwise have sat.
And they forget the reserves. An hourly maintenance reserve is variable cost even though it is not paid that day. A job priced below fuel plus reserves is not incremental revenue: it is a loss you will settle at the engine overhaul. We show a "from" price per route; the final fare depends on the date, the group and the baggage, and is confirmed in writing before booking.
The reserve is also the figure most often left out of a quick calculation, because it does not appear on any invoice that week. Operators who price without it feel profitable for two years and discover otherwise at the third.
The three cases where it does not apply
When it displaces a full-price job. Then you are not adding revenue, you are swapping it downward.
When it risks the next confirmed job. A San José–Tamarindo of 97.1 nautical miles that runs late and compromises tomorrow morning is a bad trade at any price.
And when it sets an expectation. A client who gets your marginal rate once will ask for it again, and then it is no longer marginal: it is your rate. This is the real danger, and it is commercial rather than arithmetic.
How the operator gets paid here
The operator is paid the full flight at their usual rate: our intermediation is not deducted from what they charge.
That matters for this calculation: the figure you quote is the figure that reaches you, so your margin arithmetic stays yours to run.
Where incremental jobs actually come from
Empty legs, which exist whether or not anyone is aboard. We work with empty legs: they arise from operations already confirmed, are listed at short notice and are not guaranteed. Ask us what is available that day.
Short-notice requests your own pipeline was never going to catch.
And categories nobody else in your region operates. Drake Bay is 83.5 nautical miles from San José; if your aircraft takes that field and few others do, those jobs are incremental by definition. The specific aircraft is assigned on confirmation, based on passenger count, baggage and the destination field.
That last source is the most durable of the three, because it does not depend on anyone's calendar being empty.
The sentence worth writing on the wall
Marginal pricing is a tool for filling gaps, not a strategy for filling a calendar.
An operator who prices marginally as a habit ends up with a full aircraft and a business that does not cover its fixed costs, which is the most common way a regional charter operation fails while looking busy.
Frequently asked questions
When does a low-rate job make sense?
When it covers variable cost and the alternative was the aircraft sitting, not a full-price job.
What counts as variable cost?
Fuel, fees, hourly maintenance reserves and per-flight crew expenses. Reserves count even if paid later.
What is the commonest error?
Comparing against the list rate instead of against nothing.
When does it not apply?
When it displaces a full-price job, risks the next one, or sets a client expectation.
What do I get paid?
The operator is paid the full flight at their usual rate: our intermediation is not deducted from what they charge.
Why is the maintenance reserve so often missed?
Because it appears on no invoice that week. Pricing without it feels profitable for two years.
Can marginal pricing be a strategy?
No. It fills gaps. As a habit it produces a busy aircraft and a business that does not cover fixed costs.
Let us talk
We work with empty legs: they arise from operations already confirmed, are listed at short notice and are not guaranteed. Ask us what is available that day.