CTA bus 21 stop list and CTA bus tracker 21
The CTA bus 21 - Cermak serves 19 bus stops in Chicago departing from North Riverside Mall and ending at Cermak / Cicero. Scroll down to see upcoming bus 21 times at each stop. You can also see connecting lines for the bus 21 route at each stop, including connections to the 'L' or other transit options, so you can understand where and when to transfer. The CTA bus tracker 21 shows the next scheduled departure from the CTA. The full CTA 21 schedule with real-time tracker data is available in the Transit app.
CTA bus 21 route map
The CTA bus 21 - Cermak route map is shown above. The route map shows you an overview of all the stops served by the CTA bus 21 to help you plan your trip on CTA. 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 use the included CTA tracker in the app to 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 mapCTA bus 21 Service Alerts
Open the Transit app to see more information about any active disruptions that may impact the bus 21 schedule, such as detours, moved stops, trip cancellations, major delays, or other service changes to the bus route. The app also allows you to subscribe to receive notifications for any service alert issued by CTA so that you can plan your trip around any active or future disruptions.
See all alertsCTA 21 bus Service Frequency
The next 21 bus leaves North Riverside Mall at 11:54 PM, and arrives at Cermak / Cicero at 12:07 AM. You can see the frequency of upcoming trips and the exact departure times by opening the Transit app.
See all departuresCTA 21 bus On-Time Performance
87% of riders report that the CTA 21 bus arrived on time on their previous trip. In the past 30 days, 22 riders reported on the on-time performance of the 21 bus. Compared to other CTA lines, the 21 bus is ranked 2 out of 131 CTA lines. These on-time performance stats are user reported and may differ from official CTA metrics. See more details about on time, late or early departure reports for the 21 by opening the Transit app.
See all on-time perfomance details