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Air Wisconsin Airlines is an American aviation company with a long history in the regional airline industry. Founded in 1965, the company developed its operations by connecting smaller communities with larger cities and important airport hubs. Based in Appleton, Wisconsin, Air Wisconsin became known for its regional passenger services and its role in supporting major airline networks.
Over several decades, the airline operated scheduled regional flights across the Midwest and eastern United States. Its aircraft connected local airports with larger transportation centres, providing travel options for business passengers, families and other travellers. The company later expanded into charter aviation services as its scheduled airline business underwent significant changes.
Air Wisconsin is identified by the IATA airline code ZW and the ICAO code AWI. These identifiers are used in aviation records, airline databases and flight-tracking systems.
Air Wisconsin began operations in 1965 and gradually developed a regional network serving communities across the United States. Its early growth helped establish the airline as an important regional aviation provider, particularly in the Midwest.
Over the years, Air Wisconsin operated flights under different regional airline arrangements. It became widely recognised for flying as United Express and later operated regional services for American Airlines under the American Eagle brand.
These partnerships allowed passengers travelling from smaller communities to connect with larger domestic and international airline networks. The airline provided aircraft, flight crews and operational services for partner airlines under their respective regional brands.
Air Wisconsin operated regional passenger flights for American Airlines under the American Eagle brand through a capacity-purchase agreement. These flights connected regional airports with larger American Airlines hubs and provided passengers with access to additional connecting destinations.
The agreement began winding down in 2025 and officially ended on April 3, 2025. Following its termination, Air Wisconsin stopped operating scheduled regional flights under that arrangement. Its historical American Eagle services remain part of the company's aviation history but should not be treated as currently available flights.
Air Wisconsin was particularly associated with the Bombardier CRJ-200 regional jet. This aircraft was designed for short- and medium-distance routes and typically accommodated approximately 50 passengers in the airline's single-class configuration.
The CRJ-200 allowed Air Wisconsin to connect smaller airports with major airline hubs. Its regional jet design made it suitable for frequent short-haul services and operations across different airport markets.
Air Wisconsin's historical fleet also included other aircraft types during its earlier decades. However, its CRJ-200 fleet became a defining part of its modern regional airline identity. Following the company's aviation asset disposition, it no longer owned its former regional jet fleet.
During its years as a scheduled regional passenger airline, Air Wisconsin served destinations throughout the Midwest and eastern United States. Its operations connected smaller communities with major airport hubs and supported onward journeys through partner airline networks.
Important locations in its historical operations included Chicago, Milwaukee, Dayton and other regional markets. Its headquarters remained in Appleton, Wisconsin, while maintenance bases and crew locations supported the airline's operational requirements.
Air Wisconsin's former passenger routes and airport connections should be understood as historical information. Its route network changed substantially after the end of its American Airlines agreement and subsequent business restructuring.
Air Wisconsin expanded into on-demand charter aviation as part of its effort to diversify beyond scheduled regional passenger services. Charter flights provide dedicated air transportation for groups that require customised travel arrangements.
Potential charter customers include sports teams, corporate organisations, educational institutions and other groups requiring private group transportation. These services can be arranged according to specific travel requirements, aircraft availability and operational permissions.
The company's charter activities became an important part of its business strategy following the termination of its scheduled passenger agreement with American Airlines.
Air Wisconsin was historically owned by Harbor Diversified, Inc. In January 2026, Harbor Diversified sold the airline's operations and 13 aircraft to CSI Aviation. This transaction marked a significant change in the company's ownership and operating structure.
The sale followed a difficult period for the regional airline business, including the termination of its American Airlines agreement and unsuccessful efforts to establish sustainable scheduled regional operations. Air Wisconsin subsequently shifted away from its former role as a traditional regional passenger airline.
Travellers researching Air Wisconsin should distinguish between the airline's historical scheduled passenger services and its later charter-related operations. The company's former American Eagle flights are no longer available as Air Wisconsin-operated scheduled services under that agreement.
For many decades, Air Wisconsin played a significant role in connecting smaller American communities with larger aviation networks. Its regional jet operations supported passenger access to major airports and helped extend the reach of partner airlines.
The airline's history reflects the changing structure of regional aviation in the United States, where partnerships, capacity agreements, fleet decisions and operating costs can influence the availability of regional air services.
The IATA code for Air Wisconsin Airlines is ZW.
The ICAO code for Air Wisconsin Airlines is AWI.
Air Wisconsin is headquartered in Appleton, Wisconsin, United States.
Air Wisconsin began its airline operations in 1965 and developed into a regional aviation provider serving communities across the Midwest and eastern United States.
Air Wisconsin was widely associated with the Bombardier CRJ-200, a regional jet that typically accommodated approximately 50 passengers in its single-class configuration.
Yes. Air Wisconsin operated regional flights under the American Eagle brand through an agreement with American Airlines. That capacity-purchase agreement ended on April 3, 2025.
Air Wisconsin ended its scheduled regional passenger operations under its American Airlines agreement in April 2025. Its subsequent business changes and sale of aviation assets mean its former passenger route network should not be considered an active scheduled airline network.
Air Wisconsin pursued on-demand charter services as part of its business strategy. Charter operations are separate from ordinary scheduled passenger airline services, and current availability should be confirmed directly with the company.
Air Wisconsin has a history spanning more than six decades in American aviation. From its early regional passenger services to its long-running partnerships with major airlines and later charter activities, the company has been part of the changing regional aviation industry in the United States. Its former routes, airline codes and aircraft history remain useful information for travellers researching older flight records and airline operations.
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