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TorontoGO Transit

GO Transit 21 bus

Milton

63 % on time

GO Transit 21 bus Stop List and Next Departures

The GO Transit 21 - Milton bus serves 30 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
Tue, Oct 28, 2025
  • Union Station Bus TerminalWheelchair accessible2:45 PM
  • Mississauga Rd. / Argentia Rd.Wheelchair accessible3:35 PM
  • Erin Mills Pkwy. / Turner Valley Rd.Wheelchair accessible3:37 PM
  • Millcreek Dr. / Erin Mills Pkwy.Wheelchair accessible3:41 PM
  • Millcreek Dr. / Millrace Crt.Wheelchair accessible3:44 PM
  • Millcreek Business CentreWheelchair accessible3:46 PM
  • Meadowvale GO BusWheelchair accessible3:50 PM
  • Aquitaine Ave. / Millcreek Dr.Wheelchair accessible3:51 PM
  • Aquitaine Ave. / Montevideo Rd.Wheelchair accessible3:52 PM
  • Aquitaine Ave. / Glen Erin Dr.Wheelchair accessible3:53 PM
  • Meadowvale Town CentreWheelchair accessible3:54 PM
  • Winston Churchill Blvd. / Vanderbilt Rd.Wheelchair accessible3:56 PM
  • Derry Rd. W. / Danton PromenadeWheelchair accessible3:59 PM
  • Derry Rd. W. / Tenth Line W.Wheelchair accessible4:00 PM
  • Derry Rd. W. / Terragar Blvd.Wheelchair accessible4:01 PM
  • Derry Rd. W. / Rosehurst Dr.Wheelchair accessible4:04 PM
  • Derry Rd. W. / Ninth LineWheelchair accessible4:05 PM
  • Derry Rd. / James Snow Pkwy.Wheelchair accessible4:20 PM
  • Derry Rd. / Trudeau Dr.Wheelchair accessible4:21 PM
  • Derry Rd. / Fourth LineWheelchair accessible4:22 PM
  • Derry Rd. / Sauve St.Wheelchair accessible4:22 PM
  • Derry Rd. / Miller WayWheelchair accessible4:23 PM
  • Derry Rd. / Miller WayWheelchair accessible4:24 PM
  • Derry Rd. / Thompson Rd. S.Wheelchair accessible4:25 PM
  • Thompson Rd. S. / Derry Rd. W.Wheelchair accessible4:25 PM
  • Thompson Rd. S. / Laurier Ave.Wheelchair accessible4:26 PM
  • Thompson Rd. S. / McCuaig Dr.Wheelchair accessible4:27 PM
  • Thompson Rd. S. / Childs Dr.Wheelchair accessible4:28 PM
  • Drew Centre / Thompson Rd. S.Wheelchair accessible4:29 PM
  • Milton GO BusWheelchair accessible4:30 PM
  • 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 2:45 PM, and arrives at Milton GO Bus at 4:30 PM. 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

    63 % on time

    63% of riders report that the GO Transit 21 bus arrived on time on their previous trip. In the past 30 days, 146 riders reported on the on-time performance of the 21 bus. Compared to other GO Transit lines, the 21 bus is ranked 28 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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