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Washington D.C.Metrobus

Metrobus P21 bus

Previously G12

Hanover Pkwy-New Carrollton

63 % on time

Metrobus P21 bus Stop List and Next Departures

The Metrobus P21 - Hanover Pkwy-New Carrollton bus serves 62 bus stops in the Washington D.C. area departing from Greenbelt / Bay D and ending at New Carrollton. Scroll down to see upcoming P21 bus times at each stop and the next scheduled P21 bus times will be displayed. The full P21 bus schedule as well as real-time departures can be found in the Transit app.

See more departures
Stops
Fri, Apr 10, 2026
  • Greenbelt / Bay D6:50 AM
  • Greenbelt Metro Dr / Cherrywood Ln6:52 AM
  • Cherrywood Ln / Ivy Ln6:53 AM
  • Ivy Ln / 63036:53 AM
  • Ivy Ln / Crowne Plaza6:54 AM
  • Ivy Ln / Turner Pl6:54 AM
  • Ridge Rd / Ivy Ln6:55 AM
  • Ivy Ln / Lastner Ln6:56 AM
  • Lastner Ln / Julien Ct6:57 AM
  • Ridge Rd / 73 Ct6:58 AM
  • Ridge Rd / Research Rd6:59 AM
  • Ridge Rd / Laurel Hill Rd6:59 AM
  • Ridge Rd / #57 Court7:00 AM
  • Ridge Rd / Plateau Pl7:00 AM
  • Ridge Rd / Northway7:01 AM
  • Ridge Rd / Eastway7:01 AM
  • Ridge Rd / 35 Ct7:02 AM
  • Ridge Rd / 33 Ct7:02 AM
  • Ridge Rd / Gardenway7:02 AM
  • Crescent Rd / Gardenway7:03 AM
  • Southway / Crescent Rd7:03 AM
  • Ridge Rd / 12 Ct7:04 AM
  • Westway / Ridge Rd7:05 AM
  • Lakeside Dr / Westway7:06 AM
  • Lakeside Dr / Lakecrest Dr7:06 AM
  • Lakecrest Dr / Legion Dr7:06 AM
  • Greenbelt Rd / Greenway Ctr7:08 AM
  • Hanover Pkwy / Greenbelt Rd7:09 AM
  • Hanover Pkwy / #77167:10 AM
  • Hanover Pkwy / #78007:11 AM
  • Hanover Pkwy / Mandan Rd7:11 AM
  • Mandan Rd / #76487:12 AM
  • Mandan Rd / #75167:12 AM
  • Mandan Rd / #75017:13 AM
  • Mandan Rd / Court #77:13 AM
  • Ora Glen Dr / Mandan Rd7:14 AM
  • Ora Glen Dr / Morrison Dr7:14 AM
  • Ora Glen Dr / Wintergreen Ct7:15 AM
  • Ora Glen Dr / Ora Ct7:16 AM
  • Hanover Pkwy / Greenway Center Dr7:16 AM
  • Hanover Pkwy / Hanover Dr7:17 AM
  • Hanover Pkwy / Greenbrook Dr7:17 AM
  • Hanover Pkwy / Hunting Ridge7:18 AM
  • Hanover Pkwy / Village Park Dr7:19 AM
  • Hanover Pkwy / Megan Ln7:20 AM
  • Hanover Pkwy / Spring Manor Dr7:20 AM
  • Hanover Pkwy / Green Crescent Ct7:20 AM
  • Doctors Hospital Rdwy / Bus Shelter7:21 AM
  • Princess Garden Pkwy / Greenfield Dr7:23 AM
  • Princess Garden Pkwy / #65127:23 AM
  • Princess Garden Pkwy / Woodburn Ct7:24 AM
  • Princess Garden Pkwy / Hickory Hill Av7:25 AM
  • Princess Garden Pkwy / City Hall7:26 AM
  • Princess Garden Pkwy / Annapolis Rd7:26 AM
  • Annapolis Rd / 85 Av7:28 AM
  • Annapolis Rd / Riverdale Rd7:29 AM
  • Annapolis Rd / #79907:29 AM
  • Annapolis Rd / W Lanham Dr7:29 AM
  • Harkins Rd / Annapolis Rd7:30 AM
  • Harkins Rd / W Lanham Dr7:30 AM
  • Harkins Rd / Ellin Rd7:31 AM
  • New Carrollton7:32 AM
  • Metrobus Hanover Pkwy-New Carrollton map

    Metrobus P21 bus route map

    The Metrobus P21 - Hanover Pkwy-New Carrollton bus route map is shown above. The route map shows you an overview of all the stops served by the Metrobus P21 bus to help you plan your trip on Metrobus. 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 P21 bus is approaching your stop.

    See the detailed route map

    Metrobus P21 bus Service Alerts

    Open the Transit app to see more information about any active disruptions that may impact the P21 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 Metrobus so that you can plan your trip around any active or future disruptions.

    See all alerts

    Metrobus P21 bus Service Frequency

    The next P21 bus leaves Greenbelt / Bay D at 6:50 AM, and arrives at New Carrollton at 7:32 AM. You can see the frequency of upcoming trips and the exact departure times by opening the Transit app.

    See all departures

    Metrobus P21 bus On-Time Performance

    63 % on time

    63% of riders report that the Metrobus P21 bus arrived on time on their previous trip. In the past 30 days, 54 riders reported on the on-time performance of the P21 bus. Compared to other Metrobus lines, the P21 bus is ranked 97 out of 126 Metrobus lines. These on-time performance stats are user reported and may differ from official Metrobus metrics. See more details about on time, late or early departure reports for the P21 by opening the Transit app.

    See all on-time performance details

    Metrobus P21 bus FAQ

    Other Metrobus bus schedules, routes and maps

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