Invercargill Airport Limited owns and runs the airport on the western edge of Invercargill, the southernmost controlled airport in New Zealand. It is a council-controlled trading organisation, 97.47 percent owned by Invercargill City Holdings, and it is worth a profile because it files audited accounts that show a regional airport doing the one thing a regional airport can do when traffic falls: charge more for each passenger, and build a second business beside the runway.
It was built on a drained estuary, and the jets have come and gone twice
The site was tidal estuary until the late 1930s. Draining began in 1936 and the land is still kept dry by a canal and tidal pumping system. It flooded badly in 1984, closing the airport for two months, and again in 1987 while the flood protection scheme was being built. The first scheduled service landed in November 1944.
Jets arrived in 1975 and left in 1995, when Air New Zealand moved its secondary provincial routes onto turboprops. They came back in August 2019 with an Auckland A320 service, which forced the airport to become fully secured: a perimeter fence, passenger screening, baggage x-ray and 24-hour security patrols, helped by a $500,000 Provincial Growth Fund grant that stays repayable until 2029 if the assets are sold or stop being used for their purpose. The runway is 2,210 metres, long enough to make Invercargill the designated weather diversion for Queenstown.
The company itself was formed in the late 1990s and the 2024/25 year was, in its own words, its 28th year of trading. The four minority shareholders, at 0.63 percent each, are Hokonui Research and Development, Waihōpai Rūnaka Holdings, Te Rūnaka o Awarua Charitable Trust and Ōraka-Aparima Rūnanga Incorporated Society.
How it is built now: one airline sets the volume
The accounts count 338,259 passenger movements for the year to 30 June 2025 (an arrival and a departure are two movements) and 10,148 aircraft movements. Christchurch is the busiest route at 5,176 aircraft movements, then Stewart Island at 3,863, Wellington at 585 and Auckland at 524. The Wellington service ended in January 2025. Air New Zealand flies the Christchurch and Auckland services; Stewart Island Flights runs to Oban.
The income statement, audited by Audit New Zealand:
| Income line | 2024/25 | 2023/24 | Change |
|---|---|---|---|
| Aircraft movement and terminal charges | $5,812,000 | $4,686,000 | +24.0% |
| Ground transportation (mainly parking) | $1,220,000 | $1,262,000 | -3.3% |
| Rental income | $1,183,000 | $1,021,000 | +15.9% |
| Sundry income | $1,365,000 | $774,000 | +76.4% |
| Revaluation of investment property | $624,000 | $480,000 | +30.0% |
| Total income | $10,204,000 | $8,223,000 | +24.1% |
Against that sat $2,008,000 of staff costs, $1,603,000 of depreciation and $4,159,000 of other expenses, for total operating expenditure of $7,770,000. Pre-tax profit was $2,311,000 and after-tax profit $1,603,000, of which $214,000 went out as a dividend.
The number
+35.5%
Aeronautical revenue per passenger movement at Invercargill in 2024/25: $17.18, up from $12.69, on 8.4 percent fewer passengers. Aircraft movement and terminal charges of $5,812,000 across 338,259 movements, against $4,686,000 across 369,410. (Invercargill Airport annual report 2025, calculation ours; the charges include aircraft movement fees as well as passenger-based ones)
What is worth copying
It priced for the capital plan, and said so. The chair and chief executive put the rise in aeronautical revenue down to landing fees going up to fund development work: a terminal upgrade to take new screening technology and a larger jet lounge, and resurfacing of the runway, whose seal has a 15-year design life. The charges were set through a formal aeronautical charges review. Any small operator facing a large renewal can learn from the sequence: name the asset, cost it, and put the price up before the work rather than after it.
It built a landlord business beside the runway. New wash bays were built for three rental car companies and are fully leased, a ground equipment shed went up for Air New Zealand, and a refurbished hangar annexe is being fitted out as offices for the aviation security service and a fuel company. Investment property rose 45 percent to $11.3 million, and non-aeronautical income, leaving out revaluation, reached $3,768,000, or 39 percent of operating revenue. Tenants on multi-year leases do not care how many people fly to Wellington.
It sells what it knows. Since 2023 the company has managed Milford Sound Piopiotahi Aerodrome for the Ministry of Transport as a commercial contract, which the report says the ministry supports renewing for another two years. A small team that can run a certified aerodrome has a product, and this one found a buyer in Fiordland.
It did the big job without touching the customer. The main 1,700 metres of runway were resurfaced over 30 nights between January and April 2026, laying about 500 tonnes of asphalt a night until 4am and reopening for the first 6am flight. The chief executive told the Otago Daily Times that not a single flight was delayed or cancelled. That is operational discipline worth borrowing for any business that cannot close while it rebuilds.
Where the model runs out of road
The pricing lever works on a shrinking base. Passengers fell 8.4 percent, against a target that had only asked the company to hold the previous year’s 369,410. Raising the charge per head covers that for a while, but every dollar of it is paid by an airline that has already shown it will drop a route on economics. When Air New Zealand ended the Wellington service, the report records that Great South confirmed conference bids had been lost because the city had become harder and dearer to reach. Invercargill has no second mainland carrier to play off the first.
The headline numbers flatter. The $10.2 million of revenue includes a $624,000 paper gain on property revaluation; operating revenue was $9,580,000, up 23.7 percent. The 275 percent profit rise is measured from a 2023/24 year cut by a $746,000 one-off tax charge when depreciation on buildings stopped being deductible; pre-tax profit rose 63.7 percent. And the chair and chief executive’s report describes expenses as “down slightly”, while the audited statement shows total operating expenditure up 14.0 percent and other expenses up 33.7 percent. The narrative section of an annual report is not audited. The statements are.
There is a $3.9 million argument on the balance sheet. A provision of $3,895,000 covers compensation owed under the Public Bodies Leases Act for improvements a former lessee made to airport land. The lessee declined the offer and the matter went to arbitration, and the accounts say any exposure above the provision is uncertain and not recognised. That provision is 15.3 percent of the company’s equity and 2.4 times its after-tax profit for the year. It was still sitting unchanged at 31 December 2025.
The spending has started and the debt is following. Capital expenditure in 2024/25 was $4,371,000 against a target of $14,672,000, 29.8 percent of plan, with the balance pushed into 2025/26. It is now arriving. By the half year to 31 December 2025, borrowings were $7,350,000, up from $3,520,000 six months earlier and $2,150,000 eighteen months earlier. Revenue for the half rose 21.8 percent but other expenses rose 60.3 percent, and after-tax profit fell 19.6 percent to $746,000, while the dividend went up to $500,000. Cash at the half year was $251,000. None of that is alarming for a council-owned company with equity of $25.6 million, but it is a business with little slack, a lumpy renewal cycle and one customer that sets the volume.
What to take from it
If you run a small business that depends on one channel you do not control, whether that is one airline, one wholesaler or one booking platform, the transferable part is the second business. Invercargill cannot make Air New Zealand fly to Wellington, but it can own the hangar, the wash bay and the office the airline’s partners rent, and it can sell its operating competence to someone else’s aerodrome. Those lines grew while passengers fell.
The caution is about the arithmetic. Raising the price per customer is the right move when the costs are real and the renewal is due, and Invercargill’s runway, apron and taxiway assets were 72 percent depreciated on cost before the reseal. But price rises on falling volume are a bridge, not a destination, and a business that is also borrowing to rebuild needs its volume to turn before the bridge runs out.
Written from public sources: Invercargill Airport Limited’s audited annual report for the year ended 30 June 2025 and its interim financial statements for the six months to 31 December 2025, both read in full; the company’s runway announcement of November 2025 as carried by Scoop; the Otago Daily Times report of 6 April 2026 on the completed resurfacing; and published histories of the airport. Written without the operator’s involvement. The Shoulder Season has no commercial relationship with any business it covers, takes no payment for coverage, and gives no subject approval over what is published.
Operator profiles run every week or two, a different business each time. Written from public sources, with no involvement from the operator and no commercial relationship of any kind.