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Bus - 21

21 Line

Cardiff City Centre - Pantmawr

Cardiff Bus

Cardiff Bus 21 bus Route Schedule and Stops (Updated)

The 21 bus (Cardiff) is a circular line with 46 stops departing from Westgate Street Kn, Cardiff.

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

Direction: Cardiff (46 stops)

  • Westgate Street Kn, Cardiff

  • Kingsway Ga, Cardiff Castle

  • Corbett Road, Cathays Park

  • Blackweir

  • Maindy Stadium, Maindy

  • Parkfield Place, Maindy

  • North Road Clinic, Gabalfa

  • Cross Inn, Birchgrove

  • Birchgrove Stop 1, Birchgrove

  • Pantbach Avenue, Birchgrove

  • Welwyn Road, Birchgrove

  • Kyle Avenue, Birchgrove

  • Tyn Y Parc Grove, Rhiwbina

  • Olive Branch, Rhiwbina

  • Lon-Y-Rhyd, Rhiwbina

  • Heol Y Deri, Rhiwbina

  • Heol Nant Castan, Rhiwbina

  • Heol Llanishen Fach, Rhiwbina

  • Heol Uchaf Spar, Rhiwbina

  • Heol Lewis, Rhiwbina

  • Gron Ffordd, Rhiwbina

  • Wenallt Road, Rhiwbina

  • Lon Ysgubor, Rhiwbina

  • The Deri, Rhiwbina

  • Rhiwbina Hill, Rhiwbina

  • Caer Wenallt North, Pantmawr

  • Caer Wenallt South, Pantmawr

  • Heol Pant Y Rhyn, Coryton

  • Hollybush Inn, Coryton

  • Whitchurch Hospital, Whitchurch

  • Whitchurch Library, Whitchurch

  • Plas Y Llan, Whitchurch

  • Merthyr Road Shops, Whitchurch

  • Three Elms, Whitchurch

  • Ararat Church, Whitchurch

  • The Philog, Whitchurch

  • Cross Inn, Birchgrove

  • St Josephs Convent, Gabalfa

  • Cathays High School, Maindy

  • Blackweir

  • Rosemount, Blackweir

  • College Road Rk, Cathays Park

  • Law Courts Stop Rj, Cathays Park

  • Kingsway Stop Gr, Cardiff Castle

  • Westgate Street Kg, Cardiff

  • Westgate Street Kn, Cardiff

21 FAQ

  • What time does the 21 bus start operating?

    Services on the 21 bus start at 06:40 on Saturday.

  • What time does the 21 bus stop working?

    Services on the 21 bus stop at 21:35 on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

  • What time does the 21 bus arrive?

    When does the Cardiff City Centre - Pantmawr Bus line come? Check Live Arrival Times for live arrival times and to see the full schedule for the Cardiff City Centre - Pantmawr Bus line that is closest to your location.

  • Is there a 21 bus stop near me?

    Click here to view the nearest 21 bus stop.

21 bus Schedule

21 bus route operates everyday. Regular schedule hours: 06:48 - 21:35

DayOperating HoursFrequency (min)
Mon06:48 - 21:3525 - 60
Tue06:48 - 21:3525 - 60
Wed06:48 - 21:3525 - 60
Thu06:48 - 21:3525 - 60
Fri06:48 - 21:3525 - 60
Sat06:40 - 21:3530 - 60
Sun07:20 - 21:3743 - 60

Cardiff Bus Service Alerts

See all updates on 21 (from Westgate Street Kn, Cardiff), 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 (Cardiff) and track the bus as it moves on the map. Download the app for all Cardiff Bus info now.

21 line bus fare

Cardiff Bus 21 (Cardiff) prices may change based on several factors. For more information about Cardiff Bus tickets costs please check the Moovit app or Cardiff Bus’s official website.

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21 (Cardiff Bus)

The first stop of the 21 bus route is Westgate Street Kn, Cardiff and the last stop is Westgate Street Kn, Cardiff. 21 (Cardiff) is operational during everyday.

Additional information: 21 has 46 stops and the total trip duration for this route is approximately 58 minutes.

On the go? See why over 1.5 million users trust Moovit as the best public transport app. Moovit gives you Cardiff Bus suggested routes, real-time bus tracker, live directions, line route maps in Wales, 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 (Cardiff) 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 Cardiff Bus bus tracker app and never miss your bus.

Use the app as a trip planner for Cardiff Bus or a trip planner for Train or Bus to plan your route around Wales. The trip planner shows updated data for Cardiff Bus and any bus, including line 21, in Wales

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