About | Cornerstone Aircraft Sales

Thank you for visiting Cornerstone Aircraft Sales.

Buying or selling an aircraft is a significant decision. Our mission is to make the process clear, secure, and straightforward from start to finish. This business is built on trust, and every transaction is guided by transparency, integrity, and a safety-first mindset.

Whether you are exploring your options or preparing to move forward, you can expect honest guidance, clear communication, and professional support without pressure.

Your Aviation Home Base

Cornerstone Aircraft Sales proudly operates from Galt Airport (10C), located in the heart of McHenry County.

10C sits within an hour radius of many of Chicago’s most populated suburbs, offering convenient access while avoiding congestion, delays, and operating costs associated with larger metropolitan airports.

The airport is home to a highly regarded flight school that has earned multiple AOPA Flight Training Experience Awards, reflecting a culture of safety, professionalism, and instructional excellence.

Through strong relationships within the airport community, we support clients far beyond aircraft transactions.

Driven by Leadership, Backed by Experience

Cornerstone Aircraft Sales is guided by dedicated day-to-day leadership and strengthened by a long-standing foundation of aviation expertise and trusted industry relationships.

Aircraft sales and acquisitions
Airport management and operations
Aircraft maintenance and technical services

Expert Guidance. Strong Results.

Successfully buying or selling an aircraft requires more than advertising and negotiation. It requires accurate valuation, timing, and real market insight.

A True One-Stop Aviation Resource

Cornerstone Aircraft Sales operates as more than a brokerage. We serve as a centralized aviation resource designed to simplify aircraft ownership and support every phase of your journey.

Direct coordination with the on-field MX shop for maintenance and pre-purchase inspections
Communication with airport management for hangar space and storage solutions
Connections with the flight school for training, ratings, and proficiency

Our clients work directly with one dedicated point of contact throughout the entire process — no hand-offs, no hoops, and no confusion.

My Story

Cornerstone Aircraft Sales operates with a team-oriented philosophy, and I proudly manage the day-to-day client relationships and transaction oversight.

While I lead daily operations, Cornerstone Aircraft Sales is supported by a trusted aviation network at Galt Airport (10C), including close collaboration with airport leadership, the flight school owner, and the on-field maintenance facility. These relationships provide valuable operational insight and enable efficient coordination of inspections, maintenance, and client support.

I’m Andy Klein, an instrument-rated pilot with firsthand flight experience and a deep understanding of the aviation marketplace.

I will soon hold a degree in Aviation Flight Science from Western Michigan University.