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Bus - 21

21 Line

Watson Rd

Metro Transit

Metro Transit 21 Bus Route Schedule and Stops (Updated)

The 21 bus (To Fenton - Assembly Pkwy) has 32 stops departing from Shrewsbury-Lansdowne I-44 Transit Center and ending at Assembly Pkwy @ North Hwy Eb.

Choose any of the 21 bus stops below to find updated real-time schedules and to see their route map.

Direction: To Fenton - Assembly Pkwy (32 stops)

  • Shrewsbury-Lansdowne I-44 Transit Center

  • Weil @ River Des Peres Sb

  • Watson @ Creighton Wb

  • 7221 Watson Wb

  • Watson @ Mackenzie Wb

  • Watson @ Mackenzie Plaza Exit Wb

  • Watson @ Trianon Parkway Wb

  • 7601 Watson Wb

  • Watson @ Ravensridge Wb

  • Watson @ Wimbledon Wb

  • Watson @ Pembroke Wb

  • Watson @ Laclede Station Road Wb

  • Watson @ Culverhill Wb

  • Watson @ Edgar Wb

  • Watson @ Cheshire Wb

  • 8457 Watson Wb

  • 8567 Watson Wb

  • 8749 Watson Wb

  • Watson @ Grant Wb

  • Watson @ Watson Industrial Park Wb

  • Watson @ Park Crestwood Wb

  • Watson @ Sappington Wb

  • Watson @ Glenwood Wb

  • 9833 Watson Wb

  • Watson @ Sturdy Wb

  • Watson @ Starling Wb

  • Watson @ Windward Ridge Wb

  • 10415 Watson Wb

  • Watson @ Sunset Office Wb

  • 425 North Highway Wb

  • North Highway @ Hitzert Court Wb

  • Assembly Pkwy @ North Hwy Eb

21 FAQ

  • What time does the 21 bus start operating?

    Services on the 21 bus start at 5:08 AM on Monday, Tuesday, Wednesday, Thursday, Friday.

  • What time does the 21 bus stop working?

    Services on the 21 bus stop at 10:20 PM on Saturday, Sunday.

  • What time does the 21 bus arrive?

    When does the Watson Rd bus line come? for live arrival times and to see the full schedule for the Watson Rd bus line that is closest to your location.

  • Is there a 21 bus stop near me?

    to view the nearest 21 bus stop.

Metro Transit 21 bus Route Map - To Fenton - Assembly Pkwy

21 Bus Schedule

21 bus route operates everyday. Regular schedule hours: 5:08 AM-10:28 PM

DayOperating HoursFrequency (min)
Mon5:08 AM-10:28 PM60-80
Tue5:08 AM-10:28 PM60-80
Wed5:08 AM-10:28 PM60-80
Thu5:08 AM-10:28 PM60-80
Fri5:08 AM-10:28 PM60-80
Sat5:10 AM-10:20 PM80
Sun5:10 AM-10:20 PM80

Metro Transit Bus Service Alerts

See all updates on 21 (from Shrewsbury-Lansdowne I-44 Transit Center), including real-time status info, bus delays, changes of routes, changes of stops locations, and any other service changes. Get a real-time map view of 21 (To Fenton - Assembly Pkwy) and track the bus as it moves on the map. Download the app for all Metro St. Louis info now.

21 line bus fare

Metro Transit 21 (To Fenton - Assembly Pkwy) prices may change based on several factors. For more information about Metro Transit tickets costs please check the Moovit app or Metro St. Louis’s official website.

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21 (Metro Transit)

The first stop of the 21 bus route is Shrewsbury-Lansdowne I-44 Transit Center and the last stop is Assembly Pkwy @ North Hwy Eb. 21 (To Fenton - Assembly Pkwy) is operational during everyday.

Additional information: 21 has 32 stops and the total trip duration for this route is approximately 24 minutes.

On the go? See why over 1.5 million users trust Moovit as the best public transit app. Moovit gives you Metro Transit suggested routes, real-time bus tracker, live directions, line route maps in St Louis, and helps to find the closest 21 bus stops near you. No internet available? Download an offline PDF map and bus schedule for the 21 bus to take on your trip.

Line 21 Real Time bus Tracker

Track line 21 (To Fenton - Assembly Pkwy) on a live map in real time and follow its location as it moves between stations. Use Moovit as a line 21 bus tracker or a live Metro Transit bus tracker app and never miss your bus.

Use the app as a trip planner for Metro Transit or a trip planner for metro, bus or train to plan your route around St Louis. The trip planner shows updated data for Metro Transit and any bus, including line 21, in St Louis

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