Overview
- Transport Canada launched the consultation on Monday, June 8, 2026, and the process will remain open for public comment through July 24, 2026.
- The government is collecting feedback by an online survey, public engagement sessions, direct talks with Indigenous Peoples, and advice from expert groups such as Waterfront Toronto, and it will publish a summary report later.
- Ontario’s government recently passed legislation to replace the City of Toronto in the tripartite agreement that governs the airport and is pressing to extend the runway to allow larger aircraft.
- Prime Minister Mark Carney has said he has not formed an opinion and the federal government controls aviation and the tripartite framework, making Ottawa the decisive authority on any expansion.
- Critics and local leaders have urged a pause, warning that expansion could raise air, noise and water pollution, displace planned housing in the Port Lands, threaten island parks and increase traffic, and no public business plan from the airport or port authority has yet been released.