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The Ontario Line

The Ontario Line

Announced by the Province of Ontario in 2019, the proposed Ontario Line is one of four priority transit projects Metrolinx is leading for the Greater Toronto and Hamilton Area (GTHA). The line will be the largest single expansion in Toronto’s subway history, helping to ease congestion on existing transit lines throughout the city and bring transit to underserviced neighbourhoods.

The proposed Ontario Line will bring nearly 15.5 kilometres of much-needed subway service to Toronto to make it faster and easier for hundreds of thousands of people to get where they need to be each day.

The line will stretch across the city, from the Ontario Science Centre in the northeast to Ontario Place in the southwest.

Current plans for the Ontario Line include 15 proposed stations, including six interchange stations and 17 new connections to GO train lines and existing subway and streetcar lines.


Get Engaged →

Learn more about the project, ask a question, read the Draft Environmental Conditions Report and provide your feedback.

The Ontario Line will make it much faster to travel across the city.

From Thorncliffe Park, a commute to the heart of downtown would be 25 minutes instead of the current 42.

It will take five minutes less to get from Pape Station to Queen Station, from 18 minutes today to 13 on the Ontario Line.


The Ontario Line could reduce crowding by as much as 15% on the busiest stretch of the TTC’s Line 1. It would significantly reduce crowding at numerous stations across the network, including the following key transfer points:

  • Bloor/Yonge Station - 19% less crowding
  • Eglinton Station - 17% less crowding
  • Union Station - 16% less crowding


Key Facts

Number of proposed stations15
Number of proposed connections to other transit options17
  • 3 GO lines
  • 4 connections to Line 1, 2 and Line 5 (Eglinton Crosstown)
  • 10 Connections to King, Queen and Gerrard streetcars
Approximate number of route kms15.5km
Estimated ridership389,000 daily boardings
Estimated frequencyAs frequent as every 90 seconds
Estimated access to transit154,000 more people within walking distance to transit
Estimated access to jobs53,000 more jobs accessible in 45 minutes or less for Toronto residents

Our Commitment to You

We are committed to continuing public engagement to keep you informed and collect your feedback. During this time, all engagement activities will remain online to follow public health advice and protect the community and our staff.

Learn more about the project and how you can get involved.

Ontario Line Updates

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