Warren County Airport can park only two or three business jets at a time. That bottleneck is costing the region corporate air traffic, Airport Authority Chairman Jack DeBrunner says.

A $4.3 million Federal Aviation Administration (FAA) grant will fund a ramp expansion expected to finish by early spring 2027, as first reported by Axios on Sept. 22. Four businesses are also eyeing corporate hangars on 12 acres the county acquired with FAA and county assistance, though none have been publicly identified.

The growth matters for Mason-area residents because the airport sits near major employers including Procter & Gamble and Cintas, along with Kings Island and the Cincinnati Open. Rebecca Koehl, executive assistant at the airport, said at the September 2026 Airport Fest that people were calling months in advance to arrange flights for the Cincinnati Open tennis tournament.

Total flights at the airport jumped 35% from 2023 through 2025. Based aircraft are expected to nearly double, growing from about 100 in 2023 to more than 185 by the end of 2026.

Warren County Commissioner Dave Young framed the airport as an economic development tool, saying corporate travelers weigh how easily they can fly in and out when choosing where to locate a headquarters or plant.

The airport already supports about 40 businesses employing more than 100 people and records nearly 38,000 takeoffs and landings a year, according to a July 2026 Airport Authority update to the Warren County Board of Commissioners. The authority estimated the airport's annual economic impact at $18 million to $27 million.

The airport's unusual ownership structure helps explain how growth has happened without large taxpayer outlays. Warren County owns the runway and taxiway, but all developed land is privately held. During the July 21 commissioners' update, DeBrunner called it one of only two airports in Ohio structured that way. "The private development has really benefited the county because they've spent tens of millions of dollars without any taxpayer expense for developments there," he said.

Officials also have a longer-term goal of extending the runway from 4,503 feet to 5,000 feet, a threshold Airport Director Josh Curtis told Axios would open the field to larger corporate jets. No timeline has been set, and FAA approval is still needed.