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TorontoGO Transit

GO Transit 21 bus

Milton

62 % on time

GO Transit 21 bus Stop List and Next Departures

The GO Transit 21 - Milton bus serves 51 bus stops in the Toronto area departing from Union Station Bus Terminal and ending at Milton GO Bus. Scroll down to see upcoming 21 bus times at each stop and the next scheduled 21 bus times will be displayed. The full 21 bus schedule as well as real-time departures (if available) can be found in the Transit app.

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Stops
Wed, Nov 5, 2025
  • Union Station Bus TerminalWheelchair accessible5:40 AM
  • Cooksville GO BusWheelchair accessible6:02 AM
  • Hurontario St. / Fairview Rd.Wheelchair accessible6:05 AM
  • Hurontario St. / Elm Dr.Wheelchair accessible6:07 AM
  • Square OneWheelchair accessible6:14 AM
  • Rathburn Rd. W. / Elora Dr.Wheelchair accessible6:17 AM
  • Rathburn Rd. W. / Elora Dr.Wheelchair accessible6:17 AM
  • Rathburn Rd. W. / Elora Dr.Not wheelchair accessible6:18 AM
  • Rathburn Rd. W. / Mavis Rd.Wheelchair accessible6:18 AM
  • Rathburn Rd. W. / Perivale Rd.Wheelchair accessible6:21 AM
  • Rathburn Rd. W. / Creditview Rd.Wheelchair accessible6:23 AM
  • Erindale GO BusWheelchair accessible6:24 AM
  • Creditview Rd. / Rathkeale Rd.Wheelchair accessible6:27 AM
  • Eglinton Ave. W. / Mississauga Rd.Wheelchair accessible6:30 AM
  • Eglinton Ave. W. / Summersky Crt.Wheelchair accessible6:32 AM
  • Erin Mills Pkwy. / Erin Centre Blvd.Wheelchair accessible6:34 AM
  • Erin Mills Pkwy. / McFarren Blvd.Wheelchair accessible6:35 AM
  • Thomas St. / Erin Mills Pkwy.Wheelchair accessible6:36 AM
  • Streetsville GO BusWheelchair accessible6:39 AM
  • Streetsville GO Station Parking LotWheelchair accessible6:40 AM
  • Thomas St. / Highbank Rd.Wheelchair accessible6:42 AM
  • Erin Mills Pkwy. / Vista Blvd.Wheelchair accessible6:44 AM
  • Erin Mills Pkwy. / Britannia Rd. W.Wheelchair accessible6:45 AM
  • Millcreek Dr. / Erin Mills Pkwy.Wheelchair accessible6:49 AM
  • Millcreek Dr. / Millrace Crt.Wheelchair accessible6:50 AM
  • Millcreek Business CentreWheelchair accessible6:51 AM
  • Meadowvale GO BusWheelchair accessible6:52 AM
  • Aquitaine Ave. / Millcreek Dr.Wheelchair accessible6:53 AM
  • Aquitaine Ave. / Montevideo Rd.Wheelchair accessible6:53 AM
  • Aquitaine Ave. / Glen Erin Dr.Wheelchair accessible6:54 AM
  • Meadowvale Town CentreWheelchair accessible6:55 AM
  • Winston Churchill Blvd. / Vanderbilt Rd.Wheelchair accessible6:56 AM
  • Lisgar GO BusWheelchair accessible7:03 AM
  • Derry Rd. W. / Danton PromenadeWheelchair accessible7:08 AM
  • Derry Rd. W. / Tenth Line W.Wheelchair accessible7:08 AM
  • Derry Rd. W. / Terragar Blvd.Wheelchair accessible7:09 AM
  • Derry Rd. W. / Rosehurst Dr.Wheelchair accessible7:10 AM
  • Derry Rd. W. / Ninth LineWheelchair accessible7:11 AM
  • Derry Rd. / James Snow Pkwy.Wheelchair accessible7:22 AM
  • Derry Rd. / Trudeau Dr.Wheelchair accessible7:23 AM
  • Derry Rd. / Fourth LineWheelchair accessible7:24 AM
  • Derry Rd. / Sauve St.Wheelchair accessible7:24 AM
  • Derry Rd. / Miller WayWheelchair accessible7:25 AM
  • Derry Rd. / Miller WayWheelchair accessible7:26 AM
  • Derry Rd. / Thompson Rd. S.Wheelchair accessible7:26 AM
  • Thompson Rd. S. / Derry Rd. W.Wheelchair accessible7:27 AM
  • Thompson Rd. S. / Laurier Ave.Wheelchair accessible7:27 AM
  • Thompson Rd. S. / McCuaig Dr.Wheelchair accessible7:28 AM
  • Thompson Rd. S. / Childs Dr.Wheelchair accessible7:28 AM
  • Drew Centre / Thompson Rd. S.Wheelchair accessible7:29 AM
  • Milton GO BusWheelchair accessible7:30 AM
  • GO Transit Milton map

    GO Transit 21 bus route map

    The GO Transit 21 - Milton bus route map is shown above. The route map shows you an overview of all the stops served by the GO Transit 21 bus to help you plan your trip on GO Transit. Opening the app will allow you to see more detailed information about the route on a map including stop specific alerts, such as stops that have been closed or moved. You can also see the location of vehicles in real-time on the route map so you know when the 21 bus is approaching your stop.

    See the detailed route map

    GO Transit 21 bus Service Alerts

    Open the Transit app to see more information about any active disruptions that may impact the 21 bus schedule, such as detours, moved stops, trip cancellations, major delays, or other service changes to the bus route. The Transit app also allows you to subscribe to receive notifications for any service alert issued by GO Transit so that you can plan your trip around any active or future disruptions.

    See all alerts

    GO Transit 21 bus Service Frequency

    The next 21 bus leaves Union Station Bus Terminal at 5:40 AM, and arrives at Milton GO Bus at 7:30 AM. You can see the frequency of upcoming trips and the exact departure times by opening the Transit app.

    See all departures

    GO Transit 21 bus On-Time Performance

    62 % on time

    62% of riders report that the GO Transit 21 bus arrived on time on their previous trip. In the past 30 days, 133 riders reported on the on-time performance of the 21 bus. Compared to other GO Transit lines, the 21 bus is ranked 31 out of 46 GO Transit lines. These on-time performance stats are user reported and may differ from official GO Transit metrics. See more details about on time, late or early departure reports for the 21 by opening the Transit app.

    See all on-time performance details

    GO Transit 21 bus FAQ

    Other GO Transit bus schedules, routes and maps

    Other transit modes in Toronto area

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