On Dec. 14-15, there will be no GO train service on the Stouffville line. GO bus service will replace trains at all stations except Kennedy, Agincourt and Milliken GO.   

• GO Bus Route 71E will serve Union Station Bus Terminal, Unionville GO, Centennial GO, Markham GO, and Mount Joy GO.   
• GO Bus Route 71C will serve Union Station Bus Terminal, Unionville GO, Centennial GO, Markham GO, Mount Joy GO, Stouffville GO, and Old Elm GO.  

GO bus schedules will differ from regular train schedules due to differences in travel time. Check schedules before you travel.  

There will be no GO Transit service at Milliken, Agincourt, or Kennedy GO.   

If you’re travelling to Union Station from:    

• Milliken GO – Take TTC bus route 53 Steeles East, connecting to TTC Line 1 (Yonge-University).  
• Agincourt GO – Take TTC bus route 85 Sheppard East Express, connecting to TTC Line 4 (Sheppard) and Line 1 (Yonge-University).  
• Kennedy GO – Take TTC Line 2 (Bloor-Danforth) and Line 1 (Yonge-University).  

There will be regular weekday service Monday to Thursday, with some service impacts on Friday Dec. 13. 

Connecting between GO and local transit? Save with One Fare. One Fare applies when you pay your fare with a physical PRESTO card, PRESTO in Mobile Wallet, or with a contactless credit or debit card. It does not apply for cash fare or ticket products. You must use the same card throughout your entire trip.    

What type of construction work is happening?  

We will be performing track construction and maintenance along the Stouffville line to ensure the safe and reliable operations of our train service. This work will also focus on updating key infrastructure for the Stouffville GO Expansion. This work can only be completed when trains are not running.