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DenverRTD

RTD 121 bus

Peoria Street

72 % on time

RTD 121 bus Stop List and Next Departures

The RTD 121 - Peoria Street bus serves 74 bus stops in the Denver area departing from Nine Mile Sta Gate G and ending at 40th Ave / Airport Blvd-Gateway Park D. Scroll down to see upcoming 121 bus times at each stop and the next scheduled 121 bus times will be displayed. The full 121 bus schedule as well as real-time departures can be found in the Transit app.

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Stops
Wed, May 27, 2026
RTD Peoria Street map

RTD 121 bus route map

The RTD 121 - Peoria Street bus route map is shown above. The route map shows you an overview of all the stops served by the RTD 121 bus to help you plan your trip on RTD. 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 121 bus is approaching your stop.

See the detailed route map

RTD 121 bus Service Alerts

Open the Transit app to see more information about any active disruptions that may impact the 121 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 RTD so that you can plan your trip around any active or future disruptions.

See all alerts

RTD 121 bus Service Frequency

The next 121 bus leaves Nine Mile Sta Gate G at 5:51 PM, and arrives at 40th Ave / Airport Blvd-Gateway Park D at 6:59 PM. You can see the frequency of upcoming trips and the exact departure times by opening the Transit app.

See all departures

RTD 121 bus On-Time Performance

72 % on time

72% of riders report that the RTD 121 bus arrived on time on their previous trip. In the past 30 days, 19 riders reported on the on-time performance of the 121 bus. Compared to other RTD lines, the 121 bus is ranked 29 out of 104 RTD lines. These on-time performance stats are user reported and may differ from official RTD metrics. See more details about on time, late or early departure reports for the 121 by opening the Transit app.

See all on-time performance details

RTD 121 bus FAQ

  • What time does the next RTD 121 bus depart from Nine Mile Sta Gate G?

    The next 121 bus leaves Nine Mile Sta Gate G at 5:51 PM, and arrives at 40th Ave / Airport Blvd-Gateway Park D at 6:59 PM. The total trip time for the next RTD 121 bus is 68 min.

  • Is the RTD 121 bus running on time, early or late?

    You can track your bus on a map, monitor real-time updates, and see adjustments to the RTD 121 schedule by downloading the Transit app.

  • When does the next RTD 121 bus arrive?

    You can see the next RTD 121 bus times in the app as well as future departure times for the 121 bus.

  • How many bus stops are there for the RTD 121 bus?

    There are 74 stops on the RTD 121 bus.

  • Is the RTD 121 bus usually crowded?

    You can find real-time information on RTD 121 bus crowding levels in the Transit app (available in select cities or on select trips). You can also see predictions on how crowded the bus will be when it gets to your bus stop.

  • Is the RTD 121 bus currently running?

    Find out the current status for the RTD 121 bus in the Transit app.

  • What is the closest RTD 121 bus stop to me?

    Open the Transit app to see your location on a map and find the closest 121 bus stop to where you are.

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