Major Projects: When Will They Open?
Official dates and independently reported dates for the Ontario Line, Scarborough extension, Gardiner rebuild and more.
The Crosstown opened about six years late, so announced dates deserve company. Each project here carries the official date and what independent reporting says, with sources — checked June 12, 2026.
Ontario Line
ComingOfficial target: 2031. Metrolinx's CEO said in February 2026 the line is trending towards "the early 2030s".
A 15.6 km subway from Exhibition to the Science Centre. Downtown tunnelling began in April 2026, with boring machines heading east from Exhibition, and the four downtown station names — King West, Chinatown, Distillery District, Leslieville — were finalized that same month.
The most felt side effect: Queen Street between Bay and Victoria has been closed to vehicles since May 2023 for station construction and is expected to stay closed until about 2027, with streetcars on diversion.