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Oshawa Executive Airport (CYOO) is a busy municipal general aviation field on the north edge of the city of Oshawa, Ontario, within the Greater Toronto Area. Operated by the City of Oshawa under a British Commonwealth Air Training Plan heritage stretching back to 1941, it remains one of Canada's busiest training and general aviation airports, with two paved runways, a control tower and instrument approaches.
Oshawa Executive Airport is a municipal general aviation airport immediately north of the city of Oshawa, Ontario, in the Greater Toronto and Durham Region. It is the busiest general aviation airport without scheduled airline service in the Greater Toronto Area and one of the busiest such airports in Canada, with a large proportion of its traffic made up of flight training. The field is classified as an airport of entry, with Canada Border Services Agency officers available on call for aircraft carrying no more than 50 passengers. For a simulator pilot it offers a lively, tower-controlled circuit environment close to Lake Ontario and the Toronto terminal airspace, with two runways and a mix of training, corporate and touring traffic.
The airport sits adjacent to the north end of the city of Oshawa, Ontario, within the Greater Toronto Area, and lies under the influence of Toronto Terminal airspace, reflected in the published approach frequency of 133.4 MHz. It is a controlled aerodrome with its own tower and ground frequencies. Oshawa is classified as an airport of entry, with Canada Border Services Agency officers on call to clear aircraft with no more than 50 passengers; the same customs arrangement previously extended weekday cover to Buttonville Municipal Airport in nearby Markham before that airport's closure.
Oshawa Executive has two physical runways. The main runway, 12/30, is 4,231 feet long with a hard surface and is lit. The secondary runway, 05/23, is 2,668 feet long, also hard-surfaced and lit. Field elevation is 449 feet. There is no ILS at the field.
Published frequencies are: Ground 118.4 MHz, Tower 120.1 MHz, Approach 133.4 MHz, and Toronto Terminal ATIS on 125.675 MHz; an A/G (mandatory frequency) service is also listed on 120.1 MHz. The airport's official information notes localizer performance with vertical guidance approaches down to 250 feet above sea level, giving instrument-capable traffic a non-ILS approach option consistent with the airport having no ILS installed.
The City of Oshawa maintains voluntary flight restrictions from 10:30 p.m. to limit noise for surrounding residents, during which operations are intended to be restricted to police, medical and industrial flights and to Oshawa-based aircraft returning to the airport. Given the tower-controlled status of the field, arriving and departing traffic should expect to work with Ground and Tower on the published frequencies and to follow ATC instructions for joining and circuit sequencing rather than a standard uncontrolled join.
Oshawa Executive Airport opened in June 1941 under the British Commonwealth Air Training Plan as No. 20 Elementary Flying Training School, RCAF Station Oshawa. Student pilots flew de Havilland Tiger Moths and were trained by civilian instructors drawn from the Oshawa, Kingston and Brant-Norfolk flying clubs, with a relief landing field at Whitby. During this period the Oshawa branch of the Royal Canadian Flying Clubs Association was formed, and the airport became a hub for civil flying activity in the area. The school closed in December 1944 and the airfield passed to the Department of Transport before the Town of Oshawa took over management in 1947. The proposed construction of a new airport at Pickering, between Oshawa and Toronto, repeatedly raised questions about Oshawa's long-term future, and a 2018 mayoral platform in Pickering revived local debate over that project, though it has remained a source of contention. In 2008 the City of Oshawa adopted a Municipal Airport Business Plan committing to operate the airport for at least 25 years, and by 2010 had completed a new taxiway, the first phase of a hangar complex, a cardlock fuel facility and an automated weather observation system. A proposal in 2011-2012 to extend the main runway from 4,000 to 5,000 feet met strong opposition from the surrounding residential community and was cancelled in August 2012. In 2016 the City approved a six-million-dollar reconstruction of runway 12/30, which closed the airport to fixed-wing traffic for about four weeks from September to October 2017; the work added new LED edge lighting and PAPIs to improve night and low-visibility operations. A new Nav Canada control tower, costing an estimated nine million dollars, was built northwest of the original tower and opened in June 2018. Following the closure of Buttonville Municipal Airport's control tower and weather office in January 2019, a terminal area forecast station was installed at Oshawa Executive to take over that role.
Oshawa Executive Airport is managed and maintained by Total Aviation & Airport Solutions under contract to its operator, the City of Oshawa, on a 484-acre site with a modern terminal building and over 350,000 square feet of hangar space. It supports a mix of corporate business travel and general aviation, though the great majority of movements are flight training. The airport hosts the annual Girls Take Flight event each spring, and previously hosted the Canadian Aviation Expo, Canada's largest annual aviation event, from 2002 to 2008 before that event moved to Hamilton. As of March 2026 the Canadian Flight Academy, formerly a major training tenant, relocated to Peterborough Regional Airport following the expiry of its lease. The City states that the airport operates seven days a week, year round, while maintaining voluntary night-time noise restrictions for the benefit of neighbouring residents.
