Free point solution · Tool A6

Route Economics & Break-even

The CASK calculator tells you what a seat-kilometre costs. This one tells you whether a particular route pays for it — contribution per sector, the load factor you must fill to break even, and the fare that would break even at the load factor you actually expect. Runs entirely on your device.

The sector

Great-circle distance is close enough. Block distance if you have it.
Not seats sold — the configured capacity of the aircraft flying it.
CASK = operating cost ÷ available seat-kilometres.

The revenue

Net of taxes and passenger charges you collect and remit — what the airline keeps.
Bags, seat selection, on-board. Leave at zero if you do not separate it.
Per departure, not per passenger. It lowers the load factor you must fill.
What you realistically expect to achieve on this sector, not the target.

Compare aircraft on this sector

Optional. Same sector, same fare, different gauge. Leave blank to skip. The first row follows the figures above.

Break-even load factor

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Enter your figures.

The share of seats that must be sold before the sector covers its own cost.

The percentage is arithmetic. The word beside it is JK's reading, not a published standard — at or under 65% comfortable, to 80% workable, to 90% thin, above that break-even only at near-capacity. Disagree with the cut-offs and the arithmetic still stands. Above 100% is the exception: no load factor covers the sector, which is a fact rather than a view.

At your expected load factor

Enter your figures to see the sector result.

What it would take

Enter your figures to see the fare and load factor this sector needs.

Take it to the whole network.

One sector at a time is the right way to argue a route. JK runs the same maths across your full schedule, with stage-length and gauge effects on unit cost, so the marginal routes surface before the season does.

No email app? · info@aviationhubkenya.org

Indicative estimate only, for orientation. This is a single-sector contribution model on the figures you supply: it applies your network CASK to one route, and unit cost varies with stage length and gauge. It does not model connecting traffic, seasonality, currency or fleet assignment. No data leaves your browser.